Manual xsara-and-xsara-picasso-bsi-operating-principles

CITROËNTECHNICAL

TRAINING

MULTIPLEXED BSIOPERATING PRINCIPLE

FOR THEXSARA PICASSO AND XSARA

CITROËN UK LTD221 BATH ROAD

SLOUGH SL1 4BA

_________________DEALER PERSONNELDEVELOPMENT AND

TRAINING

_________________ CITROËN UK LTD. Reproduction whether partial or in full without

written permission from Citroën UK Ltd is forbidden

DOCUMENT SUMMARY

MULTIPLEXED BSI OPERATING PRINCIPLEfor the

XSARA PICASSO AND XSARA

The aim of this document is to explain certain functions of the BSI (Built-in Systems Interface).After presenting multiplexing, the following subjects will be dealt with:

Electrical functions of the XSARA and XSARA PICASSO.

− Signalling.

− Interior lighting.

− Driver's information.

− Visibility.

− Locking and unlocking.

− Automatic climate control.

− Immobilisation.

− Radio system.

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

© AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon

A

CONTENTS

PART 1 1

MULTIPLEXING / BSIXSARA AND XSARA PICASSO.................................................1

MULTIPLEXING...................................................................... .....1

I - BRIEF DEFINITION............................................................................... ..1

II - PURPOSE OF MULTIPLEXING............................................... ..............1

III - DESIGN OF THE XSARA PICASSO AND XSARA MULTIPLEXED NETWORK 2

IV - THE VAN PROTOCOL................................................................. .........3

V - LOCATION OF MULTIPLEXED ECUS.................................................. .5

BUILT-IN SYSTEMS INTERFACE...............................................7

I - FUNCTIONS CONTROLLED BY THE BSI ON THE XSARA PICASSO AND THE XSARA............................................................................... .........................8

II - BSI LAYOUTS ON THE XSARA PICASSO AND XSARA.......................9

III - BSI INPUTS................................................................................. ........11

IV - BSI OUTPUTS.................................................................. ..................13

V - LOCATION AND TYPE OF THE CONNECTORS ON THE BSI...........16

VI - CHANNEL ALLOCATION ON THE BSI......................................... ......17

VII - OPERATING MODES....................................................... .................23

VIII - AFTER-SALES OPERATIONS, ACCESSORIES..............................24

ELECTRICITY 29

I - LAYOUT DIAGRAM......................................................................... ......29

II - PARTS LIST.................................................................... .....................30

PART 2 33

SIGNALLINGXSARA AND XSARA PICASSO...............................................33

GENERAL 33

I - FOREWORD........................................................................ .................33

II - GENERAL LAYOUT.................................................... .........................33

OPERATING PRINCIPLE..........................................................35



B

I - INDICATOR FUNCTION...................................................................... ..35

II - HAZARD WARNING LAMPS FUNCTION.............................. ..............35

III - FAULTY BULB DETECTION FUNCTION................................... .........36

ELECTRICITY 37

I - LAYOUT DIAGRAM......................................................................... ......37

II - PARTS LIST.................................................................... .....................38

PART 3 41

INTERIOR LIGHTING XSARA AND XSARA PICASSO ..............................................41

GENERAL 41

I - FOREWORD........................................................................ .................41

II - GENERAL LAYOUT.................................................... .........................43

OPERATING PRINCIPLE..........................................................45

ELECTRICITY 47

I - LAYOUT DIAGRAM......................................................................... ......47

II - PARTS LIST.................................................................... .....................48

PART 4 51

DRIVER'S INFORMATION XSARA PICASSO......................................................................51

GENERAL 53

I - FOREWORD........................................................................ .................53

II - LAYOUT........................................................................ .......................54

III - XSARA PICASSO CONTROL PANEL........................................ .........61

MESSAGES AND WARNINGS FUNCTION..............................66

I - DISPLAY............................................................................................... .66

II - PRIORITY LEVELS.............................................................. ................66

III - WARNINGS FROM WIRE INFORMATION ........................................67

IV - WARNINGS FROM THE VAN FRAMES................................. ............68

INSTRUMENTATION FUNCTION.............................................70

I - COOLANT TEMPERATURE GAUGE AND WARNING FUNCTION......70

II - FUEL LEVEL GAUGE FUNCTION....................................... ................75

III - SPEEDOMETER FUNCTION............................................................. .78



C

IV - MILEOMETER FUNCTION...................................................... ...........80

V - MAINTENANCE INDICATOR FUNCTION...........................................81

VI - CLOCK / DATE / TEMPERATURE FUNCTION..................................85

LIGHTING FUNCTION..............................................................88

I - RHEOSTAT FUNCTION......................................................... ...............88

II - NIGHT DRIVING FUNCTION................................................. ..............89

ON-BOARD ECU FUNCTION...................................................92

I - GENERAL....................................................................... ......................92

II - LAYOUT........................................................................ .......................93

III - OPERATING MODES.......................................................................... 94

ELECTRICITY 96

I - LAYOUT DIAGRAM......................................................................... ......96

II - PARTS LIST.................................................................... .....................99

PART 5 102

DRIVER'S INFORMATION XSARA 102

GENERAL 104

I - FOREWORD...................................................................... .................104

II - LAYOUT...................................................................... .......................105

WARNING FUNCTION............................................................108

I - LIST OF LEDS.................................................................................. ...108

II - INTEGRATED BUZZER.............................................. .......................109

III - WARNING APPEARANCE CONDITIONS...................................... ...109

INSTRUMENTATION FUNCTION............................................112

I - MAINTENANCE INDICATOR....................................... .......................112

II - OIL LEVEL GAUGE ......................................................... ..................114

III - MILEOMETER.................................................................... ...............115

REPAIRING THE CONTROL PANEL......................................116

I - READING AND ERASING FAULTS............................................... ......116

II - PROGRAMMING THE MAINTENANCE TYPE ................................. .116

III - ACTUATOR TEST ............................................................................ .116

IV - READING THE FOLLOWING PARAMETERS..................................117



D

PART 6 118

VISIBILITYXSARA AND XSARA PICASSO..............................................118

GENERAL 120

I - FOREWORD...................................................................... .................120

II - GENERAL LAYOUT.................................................. .........................121

OPERATING PRINCIPLE........................................................124

I - WINDSCREEN WIPER FUNCTION............................................ ........124

II - REAR WIPER FUNCTION........................................... ......................126

III - MANAGEMENT OF WIPER PARKED POSITIONS..........................127

IV - WIPER PROTECTION............................................................ ..........127

V - DE-ICING................................................................................ ...........127

VI - HEADLAMP WASHER TIMER................................................. .........128

ELECTRICITY 130

I - LAYOUT DIAGRAM....................................................................... ......130

II - PARTS LIST.................................................................. .....................131

PART 7 134

LOCKING / UNLOCKINGXSARA AND XSARA PICASSO.............................................134

GENERAL 136

I - FOREWORD...................................................................... .................136



I - LOCKING / UNLOCKING.................................................... ................142

II - DEADLOCKING......................................................... ........................148

PART 8 150

AUTOMATIC CLIMATE CONTROLXSARA PICASSO....................................................................150

GENERAL 152

I - FOREWORD...................................................................... .................152


III - LAYOUT DIAGRAM.................................................................... .......156



E

IV - DESCRIPTION OF THE USER DISPLAY AND CONTROLS............157


I - COMPRESSOR MANAGEMENT FUNCTION................................... ..160

II - ADDITIONAL ELECTRIC HEATING FUNCTION.............................. ..165

III - DE-ICING FUNCTION............................................................. ..........165

IV - DOWNGRADED MODES........................................... ......................166

V - DIAGNOSTICS.......................................................... ........................167

ELECTRICITY 168

I - LAYOUT DIAGRAM - TU5JP......................................................... ......168

III - LAYOUT DIAGRAM - EW7....................................................... .........169

V - LAYOUT DIAGRAM - DW10......................................... .....................170

IV - PARTS LIST............................................................................ ..........171

PART 9 174

VEHICLE IMMOBILISATION XSARA AND XSARA PICASSO ............................................174

TRANSPONDER SYSTEM OPERATING PRINCIPLE...........176

I - FOREWORD...................................................................... .................176


III - OPERATION................................................................................... ...178

OPERATING PRINCIPLE OF THE FACTORY FITTED ANTI-INTRUSION ALARM 180

I - FOREWORD...................................................................... .................180


III - OPERATION................................................................................... ...182

OPERATING PRINCIPLE OF THE AFTER-SALES FITTED ANTI-INTRUSION ALARM............................................................... .186

I - FOREWORD...................................................................... .................186


III - OPERATION................................................................................... ...188

OPERATING PRINCIPLE OF THESYSTEM STATUS LED...........................................................192

I - FUNCTION............................................................................... ...........192

II - FUNCTIONAL DESCRIPTION..................................... ......................192



F

ELECTRICITY 194

I - LAYOUT DIAGRAM....................................................................... ......194

II - PARTS LIST.................................................................. .....................195

PART 10 198

RADIO AND COMPACT DISC CHANGER XSARA PICASSO ...................................................................198

GENERAL 200

I - FOREWORD...................................................................... .................200


RADIO OPERATING PRINCIPLE...........................................204

I - SWITCHING ON / OFF............................................ ...........................204

II - RADIO ANTI-THEFT FUNCTION........................................ ...............205

III - CONTROLLING THE BRIGHTNESS.......................... ......................205

IV - VOLUME AUTOMATICALLY LINKED TO VEHICLE SPEED............205

V - THERMAL PROTECTION............................................................. .....206

VI - CONFIGURATION...................................................... ......................206

ELECTRICITY 208

I - LAYOUT DIAGRAM....................................................................... ......208

II - PARTS LIST.................................................................. .....................209



G



H

PART 1

MULTIPLEXING / BSIXSARA AND XSARA PICASSO



Chapter 1

MULTIPLEXING

I - BRIEF DEFINITION

Multiplexing is different from previous electrical technology in that it involves transmitting several items of digital information between various devices on a single transmission channel, in the form of 2 wires.

II - PURPOSE OF MULTIPLEXING

Multiplexing is used to:

• simplify electrical harnesses,

• increase functions (for the same number of wires).



1

Chapter 1

III - DESIGN OF THE XSARA PICASSO AND XSARA MULTIPLEXED NETWORK

XSARA PICASSO design

XSARA design

Key: The dotted lines represent a connection used only by the diagnostic function.

* Available as an accessory 8410 Radio

BSI Built-in Systems Interface 8415 CD changer

0004 Control panel / Multifunction screen 8500 Navigation

8080 Automatic climate control 8600 Alarm

For the XSARA Picasso, a MultiFunction Screen is incorporated into the control panel:

• MultiFunction Screen type B,

• MultiFunction Screen type C (for navigation option).

There is no MultiFunction Screen on the XSARA.

A communications protocol defines the rules and format of the exchanges between the various ECUs. The communications protocol used on the XSARA and XSARA PICASSO is the VAN.



2

8080 8410 8415 * 0004 8500

BSI

8600 *

84150004

BSI 8410

Chapter 1

IV - THE VAN PROTOCOL

The network consists of 2 wires, called:

• Data,

• Data B (Data bar).

The Data B wire is so called because the voltage at its terminals is always opposite to the voltage on Data.

Two current levels are used to encode two distinct logical states.

This process is used to:

• limit the radiation given off,

• provide good resistance to interference.

There is an advantage in using these two wires and electronic circuits for emitting and receiving signals. It allows operation in downgraded mode if one of the wires is broken or short circuited to +12V or to earth.

If a wire breaks, the electronics compares the current level of the signal compared to a reference. The electronics signals the data line faults.



3

5V

0V

5V

0V

t

t

Data

Data B

Chapter 1

Format of the communications message (frame): Only the rate of the Data line is represented as the Data B line is the opposite.

A message in a multiplexed device is unambiguous. It is therefore not possible for an error to occur regarding the recipient nor the nature of the command to be performed.

A frame consists of 9 fields:

� a start of message identifier used to locate the start of the message.

� an arbitration identification field used to specify the recipient or recipients of the message.

� this field specifies whether an acknowledgement request from the receiver is required, depending on whether it involves a request for or distribution of information.

� a field containing the data of the message.

� a validity control field for the message in order to check the integrity of the data upon arrival.

� a field marking the end of the actual data to indicate that the message is finished.

� an acknowledgement field which allows the receiver to confirm that the message has been correctly received.

� an end of frame field.

� a frame separator which allows the next frame to use the same sequence of 9 fields.

The electrical signals conveyed by the two wires are square and follow an information encoding sequence. Only the ECUs of the system can interpret them.

IMPORTANT: It is forbidden to connect a measuring device (multimeter, etc) to the VAN network.

Data and Data B wires can be repaired using Raychem connectors.



4

� � � � � � � ��

Chapter 1

V - LOCATION OF MULTIPLEXED ECUS

XSARA PICASSO

XSARA







5

0004

8500

BSI

8080

8415 *

8410

8600 *

0004

BSI

8415

8410

Chapter 1



6

Chapter 2

BUILT-IN SYSTEMS INTERFACE

The Built-in Systems Interface (BSI) is an ECU which incorporates:

• Interface electronics (relays, fuses, diagnostic socket, HF receiver)

• Control electronics: The BSI is one of the masters of the VAN network, on which it controls communications between the ECUs

• Calculation electronics: this controls the basic functions in an autonomous manner (locking of the doors, signalling, visibility, interior lighting, engine immobiliser, etc).

• Information about the vehicle for the anti-theft protection (vehicle's VIN code, key codes, HF remote control code, radio identification, etc)

• A program which is used to control the system and perform diagnostics and configuration procedures.

The BSI acts as a gateway between the VAN network and the diagnostic tool.

In addition, it helps with energy management by controlling reduced consumption modes for itself and the other multiplexed ECUs.



7

Chapter 2

I - FUNCTIONS CONTROLLED BY THE BSI ON THE XSARA PICASSO AND THE XSARA

FUNCTION DETAILSXSARA

PICASSO XSARA

Signalling Indicator control X XHazard warning lamps button acquisition X XBlown bulb detection X XIllumination of indicators in the event of an impact X*Signalling of the locked status of the vehicle X X

Locking Locking / unlocking using the plip X XLocking / unlocking using the interior button XUnlocking in the event of an impact X*Rebound function X XBoot opening button XLocking motor protection X XAutomatic re-locking after 30 seconds of no action X XDeadlocking XUnlocking whilst driving a deadlocked vehicle XSignalling of the locking status by a system status LED X

Vehicle immobilisation Encrypted code transponder function X XBSI - engine management ECU wire connection X XSignalling of engine ECU locked by system status LED XNon multiplexed alarm XSelf-powered multiplexed alarm X X

Interior lighting Timed interior lamps upon opening doors X XProgressive extinguishing, progressive illumination X XIllumination upon removing the key X X

Windows Timed supply to electric windows and sunroof XVisibility Control of normal commands (windscreen washer, etc) X X

Intermittent wiper function when stationary XReduction in wiper speed when stationary XRear wiper linked to reverse gear and to windscreen wiper mode

X

Automatic windscreen and rear wipers with rain sensor XControl of wiper parked position X XProtection of windscreen and rear wiper motors X XTimed de-icing of rear screen and door mirrors X XTimed headlamp washers XTimed extinguishing of headlamps X

* Suppressed but may be reinstated



8

Chapter 2

FUNCTION DETAILSXSARA

PICASSO XSARA

Driver's information Programmable maintenance indicator (through connection on BSI)

X X

Acquisition of external temperature XTime base XSignalling of door status X XSidelamps on and key in ignition reminder X XAutomatic gearbox safety warning XOverspeed warning X *HF remote control battery worn warning X XTransponder fault warning X XDriving school pedal set warning XBattery charge, alternator excitation fault warning X XAcquisition by BSI and transmission of speed information to the control panel

X X

Memorising of mileage in the control panel and BSI X XMemorising of the VIN code and Diagnostic code X XOn-board ECU X

Air conditioning Automatic climate control (RFTA) XAir conditioning X X

RTFA = Refrigeration - Totally Automatic

II - BSI LAYOUTS ON THE XSARA PICASSO AND XSARA

XSARA PICASSO



9

8410

8080

8500

8415 *

BSI

0004

1

7

5

6

2

89

10

11

8600 *

0

Chapter 2

XSARA

Key: single arrow = wire connection

triple arrow = multiplexed connection.





Note: The connection numbers are used to associate these diagrams to the input-output tables for the XSARA Picasso (XsP) and the XSARA (Xs).



10

BSI

0004

12 13

16 15

Chapter 2

III - BSI INPUTS

A - SUPPLIES

DESCRIPTION EMITTER TYPE XSP XS

+ accessories informationSupply to + accessories track for windscreen / rear wash / wipe steering wheel stalk

Ignition switch - accessories - ignition position All or NothingSupply

1 12

+ALT permanent power supply Alternator Supply 1 12- +ignition on information- Electronic redundant supply

Ignition switch - ignition - cranking positions SupplyAll or Nothing

1 12

+BAT permanent electronic supply, cut off when parked by removing the shunt from the Passenger Compartment Fuse Box

Battery Supply 1 12

+BAT permanent power supply Battery Supply 1 12+BAT permanent power supply for smartpowers

Battery Supply 1 12

- Headlamp information- Electrical redundant supply, track for number plate, lighting of buttons

Lighting / headlamp signalling steering wheel stalk

SupplyAll or Nothing

1 12

Analogue earth for sensors on passenger compartment harness

Earth 1 12

Analogue earth for sensors on main harness Earth 1 12ECU earth Earth 1 12Power earth Earth 1 12

B - WIRE INPUTS

DESCRIPTION ORIGIN TYPE XSP XS

Battery charge / alternator excitation (Input-Output)

Alternator Analogue 1 12

Air conditioning compressor engaging authorisation

Engine management ECU All or Nothing 1 12

Rear wiper motor parked position information Rear wiper motor All or Nothing 1 12Windscreen wiper motor parked position information

Windscreen wiper motor All or Nothing 1 12

Engine coolant temperature warning information Coolant Temperature Management UnitFRIC Engine management ECUThermoswitch

All or Nothing 1 12

Impact detection information Inertia switch All or Nothing 1 12Right hand indicators request Lighting / signalling steering wheel stalk All or Nothing 1 noLeft hand indicators request Steering wheel stalk All or Nothing 1 12Boot or tailgate not closed switch Boot switch All or Nothing 1 noCentral locking request button Locking information (on dashboard) All or Nothing 1 12Driver's door internal opening contact Driver's door lock All or Nothing 1 12Front passenger's door internal opening contact Passenger's door lock All or Nothing 1 12Rear right hand passenger's door open switch Rear right hand door open switch All or Nothing 1 12Rear left hand passenger's door open switch Rear left hand door open switch All or Nothing 1 12Driver's door open switch Front left hand door open switch All or Nothing 1 12Front passenger's door open switch Front right hand door open switch All or Nothing 1 12Bonnet not closed switch Bonnet switch All or Nothing no 12Fuel flow information Engine ECU Frequency 1 12Engine ECU fault information Engine ECU All or Nothing 1 12On-board ECU scroll request Steering wheel stalk 1 12Heated rear screen and door mirrors de-icing request (except RFTA climate control)

De-icing button All or Nothing 1 12



11

Chapter 2

DESCRIPTION ORIGIN TYPE XSP XS

Hazard warning lamps request Hazard warning lamps button All or Nothing 1 12Rear wiper request Wipers steering wheel stalk All or Nothing 1 12Windscreen wipers high speed request Wipers steering wheel stalk All or Nothing 1 12Windscreen wipers intermittent request Wipers steering wheel stalk All or Nothing 1 12Rear screen wash request Wipers steering wheel stalk All or Nothing 1 12Windscreen wash request Wipers steering wheel stalk All or Nothing 1 12Boot open request Boot opening button All or Nothing 1 12Diesel pre-heating information Engine ECU All or Nothing 1 12Air con refrigerant safety information Pressure switch All or Nothing 1 12Windscreen wipers slow speed request Wipers steering wheel stalk All or Nothing 1 12- Reverse gear information- Supply to REVERSE track for reversing lamps

Reverse gear contact All or Nothing 1 12

Engine speed information Engine ECU Frequency 1 12Air conditioning request (for air con) Air conditioning panel All or Nothing 1 12Locking/unlocking request through lock Front lock contacts All or Nothing 1 12External air temperature information External air temperature sensor Analogue 1 12Engine coolant temperature information (not PSA2000 engine ECU and without FRIC)

Engine coolant temperature sensor Analogue 1 12

Engine coolant temperature information (PSA2000 engine ECU and with FRIC)

Engine ECU Frequency 1 12

Air conditioning evaporator temperature information

Evaporator temperature sensor Analogue 1 12

Vehicle speed information Speed sensor Frequency 1 12Diagnostic serial connector (Input/Output) Diagnostic tool 1 12

C - MULTIPLEXED INPUTS

DESCRIPTION ORIGIN XSARA PIC.

XSARA

Multifunction Screen requestsRequest to reset journey counters Multifunction screen 5 noRequest to reset tripometers Multifunction screen C 5 noRequest to maintain +VAN comfort Multifunction screen 5 no

Control panel statusOil pressure warning Control panel 5 15Night driving mode Control panel 5 noParking brake Control panel 5 15Control panel brightness level Control panel 5 15Low fuel information Control panel 5 15ABS fault Control panel 5 15Electronic brakeforce distribution fault Control panel 5 15Brake fluid fault Control panel 5 15Automatic gearbox fault Control panel no 15Gross fuel level Control panel 5 15Dipped beam Control panel 5 15

Control panel readingStored mileage Control panel 5 15

Air conditioning requestsAir conditioning request Automatic climate control 6 noHeated rear screen and door mirrors de-icing request

Automatic climate control 6 no



12

Chapter 2

IV - BSI OUTPUTS

A - WIRE OUTPUTS

DESCRIPTION RECEIVER TYPE XSP XS+ accessories supply for windscreen/rear wash/ wipe steering wheel stalk

Steering wheel stalk All or Nothing

2 13

Air conditioning compressor authorisation Engine ECU All or Nothing

2 13

Rear right hand indicator control Rear right hand indicator All or Nothing

2 13

Rear left hand indicator control Rear left hand indicator All or Nothing

2 13

Front right hand indicator control Front right hand indicator All or Nothing

2 13

Front left hand indicator control Front left hand indicator All or Nothing

2 13

Right hand repeater indicator control Right hand repeater indicator All or Nothing

2 13

Left hand repeater indicator control Left hand repeater indicator All or Nothing

2 13

Transponder clock signal Transponder Frequency 2 13Air conditioning compressor clutch control Air conditioning compressor clutch relay All or

Nothing2 13

Locking actuator control Door locks All or Nothing

2 13

Unlocking actuator control Door locks All or Nothing

2 13

Rear wiper motor control Rear wiper motor All or Nothing

2 13

Windscreen wiper motor high speed control Windscreen wiper motor All or Nothing

2 13

Supply: number plate, button lighting, etc Items illuminated at night All or Nothing

2 13

Heated rear screen control Heated rear screen All or Nothing

2 13

Supply: front electric window motors, sunroof, rear electric window relay control

Electric window motors, rear electric window relays All or Nothing

2 13

Low fuel information Engine ECU All or Nothing

2 13

Engine running information Engine running relay All or Nothing

2 13

Boot opening actuator control Boot opening lock All or Nothing

2 13

Rear interior lamp control Rear interior lamp switch All or Nothing

2 13

Front interior lamp control Front interior lamp switch All or Nothing

2 13

Windscreen wiper motor slow speed control Windscreen wiper motor All or Nothing

2 13

Reversing lamps supply Reversing lamps All or Nothing

2 13

Sidelamps relay control Sidelamps relay All or Nothing

2 no

Heated door mirrors control Door mirrors relay All or Nothing

2 13

Engine ECU resupply command for engine immobiliser

Engine ECU double relay All or Nothing

2 13

Heated rear screen and door mirror lamp control (except RFTA climate control)

De-icing switch All or Nothing

10 no

Hazard warning lamps button lamp control Hazard warning lamps button lamp All or Nothing

2 13

System status LED control System status LED All or Nothing

2 no

Supply: VAN bus power on passenger compartment harness

VAN network All or Nothing

2 13

Supply: VAN bus power on main harness VAN network All or Nothing

2 13



13

Chapter 2

B - MULTIPLEXED OUTPUTS

DESCRIPTION RECEIVER XSARA PIC.

XSARA

Fast BSI dataEngine speed Control panel/MFS 8 16Instantaneous vehicle speed Control panel/MFS, Air conditioning, Radio CD 8, 9, 10 16Mileage Control panel/MFS 8 16Fuel consumption Control panel/MFS 8 16

Slow BSI dataDay / Night status Control panel/MFS, Air conditioning, Radio 8, 9, 10, 11 noNight driving mode Control panel/MFS, Air conditioning 8, 10 noControl panel brightness level Control panel/MFS, Air conditioning 8, 10 no(Alarm on stand-by) Alarm (accessory) 0 no

Factory / Customer mode MFS, Radio, CD changer 8, 9, 11 16Reverse gear Navigation 7 noEconomy mode Control panel/MFS, Air conditioning, Radio CD 8, 9, 10 16Set to stand-by in 5 seconds Control panel/MFS, Air conditioning, Radio,

CD changer8, 9, 10, 11 16

Engine running Control panel/MFS, Air conditioning 8, 10 16Position of ignition key Control panel/MFS, Air conditioning 8, 10 16Coolant temperature Control panel/MFS 8 16Vehicle mileometer Control panel/MFS 8 16External temperature Control panel/MFS, Air conditioning 8, 10 no

BSI configurationVIN Radio 9 no

BSI displayCoolant temperature warning Control panel/MFS 8 16Brake fluid / hydraulic level warning Control panel/MFS 8 16Door(s) open, engine running warning Control panel/MFS 8 16Oil pressure warning Control panel/MFS 8 noElectronic brakeforce distribution fault Control panel/MFS 8 noABS fault Control panel/MFS 8 16EOBD fault Control panel/MFS 8 16Battery charging fault Control panel/MFS 8 16Headlamps left on reminder signal Control panel/MFS 8 16Key in ignition reminder signal Control panel/MFS 8 16Overspeed signal Control panel/MFS 8 16Parking brake Control panel 8 16HF plip battery worn MFS 8 noImpact sensor signal MFS 8 noElectric engine immobiliser system fault Control panel/MFS 8 16Vehicle locking status Control panel/MFS 8 no



14

Chapter 2

DESCRIPTION RECEIVER XSARA PIC.

XSARA

BSI CPL displaysFront right hand door open MFS 8 noFront left hand door open MFS 8 noRear right hand door open MFS 8 noRear left hand door open MFS 8 noBoot open MFS 8 noConsumption invalid (flowmeter fault) MFS 8 noRange invalid (sender fault) MFS 8 noRange calculation impossible (fuel level too low) MFS 8 no

Distance travelled insufficient (less than 400 m since resetting)

MFS 8 no

Journey distance insufficient (less that 400 m since resetting)

MFS C 8 no

Status of on board ECU scroll button MFS 8 noAverage speed travelled MFS 8 noAverage journey speed MFS 8 noFiltered speed MFS 8 noCumulative distance travelled MFS 8 noAverage consumption MFS 8 noCumulative journey distance MFS C 8 noAverage journey consumption MFS C 8 noInstant consumption MFS 8 noRemaining range MFS 8 no

BSI eventMain event present MFS 8 noSecondary event present MFS 8 noSource of the event MFS 8 noChange of signals and modes MFS 8 noChange of door status MFS 8 noChange of on board ECU data MFS 8 no

Control panel functionsActivation of control panel Control panel 8 16Pre-heating Control panel 8 16Hazard warning lamps Control panel 8 16Right hand indicator Control panel 8 16Left hand indicator Control panel 8 16

Air conditioning informationAir conditioning activation Automatic climate control 10 noCompressor authorisation Automatic climate control 10 noHeated rear screen operating status Automatic climate control 10 noCompressor status Automatic climate control 10 noCoolant pressure/temperature, evaporator safety Automatic climate control 10 noEvaporator temperature Automatic climate control 10 no



15

Chapter 2

V - LOCATION AND TYPE OF THE CONNECTORS ON THE BSI

CONNECTOR DESCRIPTION CHANNELS COLOUR

P Power Supply Connector to main harness 2 GREY

PP Power Connector to main harness 16 GREEN

PH Power Connector to passenger compartment harness 16 BLACK

EP1 Electronic Connector to main harness 26 YELLOW

EP2 Electronic Connector to main harness 12 BROWN

EH1 Electronic Connector to passenger compartment harness 26 BLUE

EH2 Electronic Connector to passenger compartment harness 12 BLUE



16

EH1

EP1EH2

EP2

P

PP

PH

Chapter 2

VI - CHANNEL ALLOCATION ON THE BSI

BSI inputs/outputs

Power part.

• Allocation of pins of the Grey 2-way NG1 connector of the main harness.

1 - + permanent

2 - + alternator



17

1

2

Chapter 2

• Allocation of pins of the Green 16-way SIGMA connector of the main harness.

8 - Output: Power supply of the VAN bus on main harness

7 - Output: Front left hand indicator control

6 - Output: Front right hand indicator control

5 - Output: + accessories for wash/wipe stalk

4 - Input: Lamps

3 - Input: Reverse gear switch

2 - Power earth

1 - Output: Windscreen wiper slow speed motor control

16 - + permanent

15 - Output: Right hand repeater indicator control

14 - Output: Left hand repeater indicator control

13 - Output: Air conditioning compressor control

12 - Power earth

11 - Spare

10 - Spare

9 - Output: Windscreen wiper high speed motor control



18

7

8

6

5

4

3

2

1

16

15

14

13

12

11

10

9

7

8

6

5

4

3

2

1

16

15

14

13

12

11

10

9

Chapter 2

• Allocation of pins of the Black 16-way SIGMA 2 connector of the passenger compartment harness.

8 - Output: Front electric window supply

7 - Output: Left hand repeater indicator control

6 - Output: Right hand repeater indicator control

5 - Output: Rear wiper control

4 - Output: Locking motors control

3 - Output: Unlocking motors control

2 - Output: Heated door mirrors control

1 - Output: Heated rear screen control

16 - Output: Power supply of the VAN bus on passenger compartment harness

15 - Output: Rear left hand indicator control

14 - Output: Rear right hand indicator control

13 - + accessories

12 - Output: Lamps

11 - Output: Reversing lamps

10 - Output: Deadlocking motors control

9 - Output: Heated rear screen control 2



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Chapter 2

• Allocation of pins of the Yellow 26-way MQS 26 connector of the main harness.

1 - K diagnostic line serial connection

2 - Input: Vehicle speed information

3 - Input: Engine ECU serial connection for engine immobiliser

4 - Input: Engine speed information through engine ECU

5 - Output: Heated rear screen and door mirrors lamp control (except RFTA VAN)

6 - Output: Engine ECU resupply control for engine immobiliser

7 - Input: Windscreen wash control

8 - Input: Wash/wipe control intermittent mode (no rain sensor)auto mode (with rain sensor)

9 - Output: Low fuel level to engine ECU

10 - Input: Rear screen wash control

11 - Input: Rear wiper

12 - Input: Right hand indicator control

13 - Input: Windscreen wiper motor parked information

14 - Input/Output: Battery charge/alternator excitation

15 - Output: Transponder clock signal

16 - Output: Engine ECU serial connection for engine immobiliser

17 - Transponder aerial serial connection for engine immobiliser

18 - Input: Coolant temperature info by FRIC engine ECU (PWM)

19 - Input: Windscreen wiper high speed control

20 - Input: Windscreen wiper slow speed control

21 - Input: Diesel preheating information

22 - Input: Inertia switch information

23 - Input: Coolant temperature warning information through thermoswitch

24 - Input: Engine ECU fault information

25 - Input: De-icing button

26 - Input: Left hand indicator control



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Chapter 2

• Allocation of pins of the Brown 12-way MQS connector of the main harness.

1 - Input: On board ECU scroll request

2 - Input: Navigation recall last message request

3 - For supplier use

4 - Output: Headlamp washer relay control

Output: Sidelamp relay control (timed illumination)

5 - Output: Air conditioning compressor authorisation request to engine ECU

6 - Input: Air conditioning compressor authorisation through engine ECU

7 - Analogue earth

8 - Input: Evaporator temperature information

9 - Input: Fuel flow information through engine ECU

10 - Input: Coolant temperature information through thermistor (analogue)

11 - Input: Refrigerant pressure safety information

12 - Input: Air conditioning request

• Allocation of pins of the Blue 12-way MQS connector of the passenger compartment.

1 - Output: Ultra sound module supply

2 - Input: Bonnet switch

3 - Input/Output: Siren serial connection

4 - Output: Close electric windows request when (dead)locking

5 - Input: Alarm request through ultrasound module

6 - Input: Volumetric suppression request button

7 - 12 - Spare



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Chapter 2

• Allocation of pins of the Blue 26-way MQS connector of the passenger compartment harness.

1 - Output: Engine running

2 - Input: Locking request through lock

3 - Input: Unlocking request through lock

4 - Input: Hazard warning lamps request button

5 - Input: Front right hand door locking button control

6 - Input: Rear left hand door switch

7 - Input: Tailgate or boot switch

8 - Input: Front left hand door locking button control

9 - Output: System status LED (locking/transponder/alarm function)

10 - Input: Rear wiper motor parked information

11 - Input: Front right hand door switch

12 - Input: Rear right hand door switch

13 - Input: Front left hand door switch

14 - Input/Output: Rain sensor serial connection

15 - Output: Door sill lighting control

16 - Output: Rear interior lamp control

17 - Output: Front interior lamp control

18 - Output: Hazard warning lamps button LED control

19 - DATA of the SCREEN/COMFORT VAN bus

20 - Input: External air temperature information

21 - DATA B of the SCREEN/COMFORT VAN bus

22 - + ignition on

23 - + permanent

24 - Analogue earth of the passenger compartment harness

25 - Earth

26 - Earth



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Chapter 2

VII - OPERATING MODES

A - NOMINAL MODE OR CUSTOMER MODE

All functions are operational. This is the operating mode designed for normal vehicle use.

B - STAND-BY MODE

In this mode, there is no communications activity and ECU consumption is minimal. The BSI scans its wake-up inputs. Each multiplexed device is able to wake up the network. In each case, it re-supplies all the ECUs by a positive called the +VAN.

ACTION WAKE-UP NETWORK

IF condition Ignition on (+accessories or + ignition on)

OR condition Lamps or hazard warning lamps illuminated

OR condition HF remote control used

OR condition Driver's door opened

OR condition Data B earthed

OR condition Request to wake-up network by VAN device (radio)

ACTION SET NETWORK TO STAND-BY

IF condition Ignition not on

AND condition No timer

AND condition No request to maintain network

C - ECONOMY MODE

The BSI cuts the supply to the ECUs (+VAN signal), there are no more communications on the network. Electrical consumption is therefore greatly reduced.

Entry into mode Engine switched off for more than 30 minutes and +VAN present

Exit from mode Starting of the engine

Note: A network device can be active and/or communicating, even if it does not appear to be working.



23

Chapter 2

VIII - AFTER-SALES OPERATIONS, ACCESSORIES

A - GENERAL

In the factory, an initialisation procedure is performed at the end of vehicle assembly in order to allow the various devices to recognise each other:

• ignition key with integrated transponder and BSI,

• HP remote controls and BSI,

• engine management ECU and BSI,

• radio and BSI.

B - ACCESSORIES

All new devices which have not undergone a programming procedure are not recognised by the system and are therefore not operational. It is therefore essential to declare all accessories which are added to or removed from the vehicle. All programming procedures require the use of a diagnostic tool. They must be performed on the vehicle.

Note: The multiplexed self-powered alarm must be disconnected when performing a diagnostic procedure on the vehicle.

ACCESSORIES PROGRAMMING IF ADDING/REMOVING

XSARA PICASSO CD changer YES > Programming of the control panel

Alarm YES > Deactivation of signalling when locking: BSI programming

XSARA Accessory alarm YES > BSI programming + deactivation of signalling when locking

C - CUSTOMISATION OF CERTAIN FUNCTIONS

Upon the customer's request, the BSI can be programmed to activate the function or not.

Radio volume linked to vehicle speed: Programming of the radio.



24

Chapter 2

D - REPLACEMENT OPERATIONS

1 - Customer confidential card

The access code (4 characters) is given to the customer on a confidential card. It can be seen after removing the masking strip on the card. It is required for all maintenance procedures on the system.

IMPORTANT:Before adding or replacing parts, ensure that the customer is still in possession of his confidential card.

2 - Loss of access code

The access code is linked to a chassis number and managed by the CITROËN network.

3 - Ordering parts

PART TO BE ORDERED

TO BE OBTAINED FROM THE CUSTOMER

TO BE SUPPLIED

BSI confidential cardvehicle registration documentform of identityfaulty BSI

BSI access codevehicle VIN code

Engine ECU confidential cardvehicle registration documentform of identityFaulty engine ECU

BSI access code vehicle VIN code

Key with integrated transponder

1 key mechanical key code

Key with integrated transponder and HF remote control

1 key mechanical key code



25

CITROËN

Chapter 2

4 - Repairs

ITEM TO BE REPLACED

ESSENTIAL ITEMS OPERATIONS TO BE PERFORMED

BSI ONLY * Customer's confidential card.All vehicle keys.New BSI.Diagnostic tool.

Programming of access code.Programming of keys and HF remote controls.

ENGINE ECU ONLY

Customer's confidential card.New engine ECU.Diagnostic tool.

Programming of engine ECU code.

KEYS AND/OR REMOTE

CONTROLS

Customer's confidential card.All vehicle keys.Diagnostic tool.

Programming of keys and HF remote controls.

BSI *+

ENGINE ECU

Customer's confidential card.All vehicle keys.New BSI + engine ECU.Diagnostic tool.

Programming of access code.Programming of keys and/or HF remote controls.Programming of engine ECU code.

* Remember to configure the BSI according to the correct customisation of the functions and accessories fitted on the vehicle.

5 - Interchanging parts

WARNING: Interchanging the BSI and engine ECU with one (or several) components from a different vehicle is strictly forbidden.

The transponder keys, HF remote controls, BSI and engine ECU are linked to the vehicle's VIN.

E - DIAGNOSTIC

The BSI acts as a gateway for the diagnostic tool which is used to identify the faults in certain components of the system.

A fault may be:

• a short circuit to earth or to +12V,

• an open circuit (broken wire),

• an operating fault (invalid value sent by a sensor),

• an ECU which no longer communicates on the network: network isolated or faulty ECU.



26

Chapter 2

Below is a list of faults which can be returned by the BSI on the XSARA and the XSARA PICASSO:

FAULT XSARA XSARA PICASSO

+Accessories stuck on 0 X XUltrasound unit supply - short circuit to earth XAlternator X X+ignition on stuck on 0 X XRain sensor XAir conditioning – Air conditioning compressor - Authorisation X XDe-icing - Lamp output short circuited to earth X XLighting - right hand indicators X XLighting - left hand indicators X XEngine ECU - error code received X XEngine ECU - reception fault X XEngine ECU - Relays - Short circuited to earth X XEngine ECU or EOBD X XHazard warning lamps - Input (request) stuck on 1 X XHazard warning lamps - Button LED - Short circuited to earth X XLow fuel - Short circuited to +BAT X XPlip - battery in current key worn X XEEPROM problem X XEngine speed X XLocking motors - Permanent request from ignition key X XUnlocking motors - Permanent request from ignition key X XSiren XEvaporator sensor - Short circuit X XCoolant temperature X XTransponder - Short circuit on connection with ring X XTransponder - Identification X XCOMFORT VAN - BSI mute X XCOMFORT VAN - Air conditioning mute X XCOMFORT VAN - Communication on Data X XCOMFORT VAN - Communication on Data B X XCOMFORT VAN - Multifunction screen mute X XCOMFORT VAN - Wake-up by network prohibited due to short circuit on Data B

X

Vehicle speed - invalid value or sensor connection problem X XSystem status lamp - Short circuited to +BAT X XCOMFORT VAN – Communications fault counter on DATA XCOMFORT VAN – Communications fault counter on DATA B XCOMFORT VAN – Frames not sent counter - BSI mute XCOMFORT VAN – Control panel counter missing XCOMFORT VAN – Multifunction screen counter missing XCOMFORT VAN – Air conditioning counter missing X



27

Chapter 2



28

Chapter 3

ELECTRICITY

I - LAYOUT DIAGRAM

PFM001P



29

Chapter 3

II - PARTS LIST

BB00 - Battery

BB12 - + battery connection terminal

BH12 - 12 fuse box (passenger compartment)


BM34 - 34 fuse engine relay unit

BSI1 - Built-in systems interface

C001 - Diagnostic connector

CA00 - Ignition switch

CT00 - Rotary connector

0002 - Signalling/lighting stalk

0004 - Control panel

0005 - Wiper stalk

1010 - Starter motor

1020 - Alternator

1203 - Inertia switch

1211 - Fuel sender pump

1220 - Engine coolant temperature sensor

1313 - Engine speed sensor

1320 - Engine management ECU

1620 - Vehicle speed sensor

2300 - Danger signal switch

2340 - Left hand side repeater

2345 - Right hand side repeater

2610 - Left hand headlamp

2615 - Right hand headlamp

2630 - Rear left hand lamp on body

2635 - Rear right hand lamp on body

3010 - Front interior lamp

3020 - Rear interior lamp

3050 - Lighting rheostat

3054 - Ashtray lighting

3105 - Boot (or tailgate) lighting



30

Chapter 3

3110 - Glove box lighting switch

3115 - Glove box lighting

4010 - Engine coolant level switch

4025 - Temperature sensor - engine coolant thermoswitch (gauge)

5015 - Windscreen wiper motor

5115 - Windscreen/rear screen washer pump

6202 - Front door lock assembly driver's side

6207 - Front door lock assembly passenger's side

6260 - Boot locking motor

8006 - Evaporator thermistor (if separate)

8007 - Pressure switch

8008 - Air conditioning engine coolant temperature thermistor

8010 - Coolant temperature unit

8020 - Air conditioning compressor

8025 - Air conditioning control panel (if separate)

8030 - Passenger compartment air thermistor

8031 - Coolant thermistor

8045 - Blower control module (if separate)

8050 - Blower motor (if separate)

8065 - Mixing flap reduction motor

8070 - Air input flap reduction motor

8071 - Distribution flap reduction motor

8220 - Analogue module transponder

8410 - Radio

8413 - Radio control

8415 - Compact disc changer

8420 - Loud speakers on front door (driver's side)

8425 - Loud speakers on front door (passenger's side)

8430 - Loud speaker (rear left hand)

8435 - Loud speaker (rear right hand)

8440 - Front left hand tweeter speaker

8445 - Front right hand tweeter speaker

8500 - Navigation ECU



31

Chapter 3



32

PART 2

SIGNALLINGXSARA AND XSARA PICASSO



Chapter 1

GENERAL

I - FOREWORD

The left and right hand indicators and side repeaters can be controlled simultaneously or independently in the following order of priority:

1 Automatic illumination of hazard warning lamps in the event of an impact (XSARA PICASSO only).

2 Locking / unlocking using the HF remote control or the key.

3 Hazard warning lamps.

4 Indicators.

The BSI incorporates the flasher unit and the internal relays. The indicators are therefore connected DIRECTLY to an output of the BSI. The LEDs and buzzer on the control panel are activated through the Comfort VAN network.

II - GENERAL LAYOUT


triple arrow = multiplexed connection



33

A B

BSI 1

0004

2 3

Chapter 1

COMPONENTS

BSI Built-in Systems Interface0004 Control panelA Steering wheel stalk

Hazard warning lamps buttonInertia switch

B Indicators and side repeatersHazard warning lamps button LED

CONNECTIONS

N° SIGNAL TYPE

1 Control of the lamp and buzzer VAN2 Indicators activation request All or Nothing

Hazard warning lamps activation request All or NothingImpact detection All or Nothing

3 Indicators and side repeaters control All or NothingHazard warning lamps button LED control All or Nothing



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Chapter 2

OPERATING PRINCIPLE

I - INDICATOR FUNCTION

Function

The BSI controls the direction indicators, the side repeaters and the LEDs on the control panel.

Functional description

The driver's request is acquired by the right or left hand indicator contacts when the ignition is on.

II - HAZARD WARNING LAMPS FUNCTION

A - ILLUMINATION OF THE HAZARD WARNING LAMPS BY PRESSING THE HAZARD WARNING LAMPS BUTTON

Function:

The BSI controls the direction indicators, the side repeaters, the danger signal warning LED and the LEDs on the control panel.

Functional description:

The driver's request is acquired by the hazard warning lamps button contact, located on the instrument panel. The function can always be activated, whether the ignition is on or off, except for the LEDs on the control panel which are only activated if the + accessories or + ignition are on.

Note: Pressing this button can wake up the VAN network.

Display:

The danger warning LED is activated by connecting an output of the BSI to +BAT.

The LED on the control panel will not be activated if the + accessories is not on.



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Chapter 2

B - AUTOMATIC ILLUMINATION OF HAZARD WARNING LAMPS IN THE EVENT OF AN IMPACT

Note: This function is only available on the XSARA PICASSO

Function:

The BSI controls the hazard warning lamps when an impact is detected.


Action Illumination of hazard warning lamps.

IF condition the ignition is on

AND condition the impact detection input is activated (connected to +BAT).

The impact is detected by the inertia switch mounted on a rigid part of the vehicle's structure (mechanical switch). The hazard warning lamps can be switched off after an impact by pressing the button.

Note: This function is not totally reliable. It depends on the size and type of the impact. The fact that the hazard warning lamps have illuminated in the event of an impact should therefore not be communicated.

III - FAULTY BULB DETECTION FUNCTION

Function:

The aim of this function is to double the illumination frequency of the indicators (left or right hand) if at least one blown bulb is detected.


Detection is performed whilst the indicators and side repeaters (left or right hand) are operating, by reading the control current of the indicators.

If the current supplied by the BSI is greater than the current consumed by an indicator or a side repeater bulb, operation is normal. If not, the illumination frequency is doubled.

All operating faults are recorded by the BSI so that they can be read by the diagnostic tool.

Note: When a tow bar is fitted, 2 bulbs must have blown for detection to occur.



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Chapter 3

ELECTRICITY

I - LAYOUT DIAGRAM

PFM002P



37

Chapter 3

II - PARTS LISTBB00 - Battery











0005 - Wiper stalk


1020 - Alternator





















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Chapter 3
























8410 - Radio












39

Chapter 3



40

PART 3

INTERIOR LIGHTING XSARA AND XSARA PICASSO



Chapter 1

GENERAL

I - FOREWORD

The interior lighting consists of 2 interior lamps. They are activated by:

• the 4 vehicle doors,

• the tailgate on the XSARA PICASSO,

• the interior lamp switches.

Positions of an interior lamp switch:

0 "Off" positionI "On" positionPO "Door open" position

Progressive illumination and extinguishing of the interior lamps

The interior lamps always illuminate and extinguish progressively. The aim of this function is to protect passengers against a sudden change in lighting.



41

0 IPO

Chapter 1

Layout diagram:

Below is the illumination and extinguishing cycle for each interior lamp:

• transitions to an illuminated state have priority,

• progressive illumination / extinguishing transitions are possible,

• there is no perceptible discontinuity.

KEY

1 Progressive illumination of interior lamp2 Interior lamp illuminated3 Progressive extinguishing of interior lamp4 Interior lamp extinguished

ACTION TIMER

Progressive illumination 1 secondProgressive extinguishing 4 seconds



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1

2

3

4

Chapter 1

II - GENERAL LAYOUT



COMPONENTS

BSI Built-in Systems InterfaceA Switches of the 4 doors (and tailgate on the Xsara Picasso).

Interior lamp switchesIgnition switch

B Front and rear interior lamps

CONNECTIONS

N° SIGNAL TYPE

1 Status of doors/tailgate All or NothingChange of interior lamp status request ------Presence of ignition key All or NothingPresence of + accessories All or Nothing

2 Timed illumination control Analogue



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A B

BSI

1 2

Chapter 1



44

Chapter 2

OPERATING PRINCIPLE

Interior lamp timer

Function:

To control:

• the illumination duration of the interior lamps (10 minutes or 10 seconds),

• the extinguishing of the interior lamps.


10 minute timer

10 second timer

Extinguishing

Door/tailgate status

X opening X X closing X closed closed closed closing closed closed X

+ accessories X X X X missing X + ACC on

X X present X X X

Locking X X X X X X X yes X X X X XUnlocking X X yes X X X X X X X X X X

Switch position X→a X X X b X b b b b a→b a→c XRemoval of ignition key

X X X yes X X X X X X X X X

10 second timer

X X X X X no X X end X X X X

10 minute timer

X X X X X end X X no X X X X

Economy mode

no no no no X X X X X X X X Entry into

mode

X = Neutral status.



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Chapter 2



46

Chapter 3

ELECTRICITY

I - LAYOUT DIAGRAM

PFM003P



47

Chapter 3

II - PARTS LIST

BB00 - Battery











0005 - Wiper stalk


1020 - Alternator





















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Chapter 3
























8410 - Radio












49

Chapter 3



50

PART 4

DRIVER'S INFORMATION XSARA PICASSO



Chapter 1

GENERAL

I - FOREWORD

This function is shared between four sub-functions:

• Instrumentation function,

• Messages and Warnings function,

• Lighting function,

• On-board ECU function.

The control panel is at the centre of the Driver's Information function. The basic control panel (type B) is described in this section.



53

Chapter 1

II - LAYOUT

The control panel receives information along the wires and by communicating with the ECUs via the VAN network.



COMPONENTS

BSI Built-in Systems Interface0004 Control panel / MFS (LEDs + microprocessor)8410 Radio8415 CD changer available as an option

A pressure switchelectrodesParking brake switchSteering wheel stalkAirbag ECUsFuel senderChild safety switchABS valve blockBrake fluid gauge+ rheostat button- rheostat button



54

BSI

84108415

6

21

7

4

5

A

0004

Chapter 1

A - INPUTS TO THE CONTROL PANEL/MULTIFUNCTION SCREEN (MFS)

Wire inputs

DESCRIPTION ORIGIN TYPE N°

Low coolant level Level sensor All or nothing

Parking brake status Switch All or nothing

Mainbeam status Steering wheel stalk All or nothing

Dipped beam status Steering wheel stalk All or nothing

Side airbags fault Side airbags ECUs All or nothing

Front airbag fault and passenger's airbag status

Airbag ECU All or nothing and frequency depending on fault

Fuel level Fuel sender Analogue 6

RH and LH child safety Child safety switch All or nothing

ABS fault ABS valve block Lamp active

Electronic brakeforce distributor fault

ABS valve block All or nothing

Radio and CD changer status change request

Steering wheel stalk All or nothingAnalogue

Front and rear fog lamps control

Steering wheel stalk All or nothing

Brake fluid level Brake fluid gauge All or nothing

Increase brightness Rheostat All or nothing

Decrease brightness Rheostat All or nothing

Min oil pressure Pressure sensor All or nothing



55

Chapter 1

Multiplexed inputs

BSI ⇒ CONTROL PANEL MFS

Fast BSI data

DESCRIPTION N°

Engine speed

Instantaneous vehicle speed 3

Distance travelled

Fuel consumption

Slow BSI data

DESCRIPTION N°

Day / night status

Night driving mode

Control panel brightness level

(Alarm on stand-by)

Factory / Customer mode

Reverse gear

Economy mode 3

Set to stand-by within 5 seconds

Engine running

Position of ignition key

Coolant temperature

Vehicle mileometer

External temperature

BSI configuration

DESCRIPTION N°

VIN 3



56

Chapter 1

BSI display

DESCRIPTION N°

Coolant temperature warning

Brake fluid / hydraulic level warning

Door(s) open warning, engine running

Oil pressure warning

Electronic brakeforce distributor (EBD) fault

ABS fault

EOBD fault

Battery charge fault 3

Headlamps left on reminder warning signal

Key left in ignition reminder warning signal

Overspeed warning signal

Parking brake

HF plip battery worn

Impact sensor warning signal

Electric engine immobiliser system fault

Vehicle locking status

BSI events

DESCRIPTION N°

Main event present

Secondary event present

Source of the event 3

Change of signals and modes

Change of door status

Change of on board ECU data



57

Chapter 1

Additional BSI display

DESCRIPTION N°

Front right hand door open

Front left hand door open

Rear right hand door open

Rear left hand door open

Boot open

Consumption invalid (flowmeter fault)

Range invalid (sender fault)

Range calculation impossible (fuel level too low)

Distance travelled insufficient (less than 400 m since resetting)

3

Journey distance insufficient (less than 400 m since resetting)

Status of on board ECU scroll button

Average speed travelled

Average journey speed

Filtered speed

Cumulative distance travelled

Average consumption

Cumulative journey distance

Average journey consumption

Instantaneous consumption

Remaining range

Control panel functions

DESCRIPTION N°

Activation of control panel

Pre-heating

Hazard warning lamps LED 3

Right hand indicator

Left hand indicator



58

Chapter 1

CD changer ⇒ CONTROL PANEL/MFS

DESCRIPTION N°

CD changer event 5

CD changer status

Radio ⇒ CONTROL PANEL/MFS

DESCRIPTION N°

Radio event

General radio status 7

Specific radio status

Multiplexed outputs

Control panel/MFS ⇒ BSI

Control panel status

DESCRIPTION N°


Night driving mode

Parking brake

Control panel brightness level

Low fuel information 7

ABS fault

Electronic brakeforce distributor (EBD) fault

Brake fluid fault

Automatic gearbox fault

Gross fuel level

Dipped beam

Control panel reading

DESCRIPTION N°

Saved mileage 2



59

Chapter 1

MFS request

DESCRIPTION N°

Request to reset cumulative distance

Request to reset cumulative journeys 2

Request to maintain + comfort VAN

MFS/CONTROL PANEL ⇒ radio

DESCRIPTION N°

Radio control 1

MFS/CONTROL PANEL ⇒ CD changer

DESCRIPTION N°

CD changer control 4



60

Chapter 1

III - XSARA PICASSO CONTROL PANEL

A - FUNCTION

The control panel has the following functions:

• Acquisition of information from the sensors and VAN network,

• Sending of data on the VAN network,

• Display of on board ECU parameters on the multifunction screen (type B),

• Warning to the driver of the vehicle status (noise, message, maintenance information, LEDs),

• Operation of radio and CD changer,

• Storing of distance travelled,

• Overspeed detection.

B - GENERAL DESCRIPTION

The control panel consists of the following components:

• Strip of LEDs; zone "b",

• Instrumentation screen; zone "f",

• Multifunction screen, type B; zone "e",

• Integrated buzzer,

• "Night driving" push button; button "a",

• "Tripometer" reset push button; button "g",

• "Access to adjustment menu" push button; button "c",



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a

d

c

g

b

f e

Chapter 1• "Incrementation in adjustment menu" push button; button "d"



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Chapter 1

C - LEDS

The control panel contains the following strip of LEDs:

LED FUNCTION

V1 Not usedV2 Left hand indicator LEDV3 Front fog lamp V4 Rear fog lamp V5 ABS faultV6 Diesel pre-heatingV7 Battery chargeV8 Brake faultV9 Oil pressureV10 Diagnostic: side AIRBAG V11 Front AIRBAG + pyrotechnic seatbelts diagnostic or passenger

AIRBAG deactivatedV12 HeadlampsV13 Dipped beamV14 Main beamV15 Right hand indicator LEDV16 Engine management LED

D - INSTRUMENTATION SCREEN

The instrumentation screen includes:

• A speedometer,

• A mileometer (incorporating the main mileometer, tripometer and maintenance indicator LED V19 functions),

• A coolant temperature gauge with a coolant temperature warning (LED V18),

• A fuel level gauge with a low fuel warning (LED V17).



63

V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V15 V16

V19

V18

V17

Chapter 1

E - MULTIFUNCTION SCREEN, TYPE B

The display is divided into four zones:

Zone "j": display of the time and external temperature and other messages,

Zone "k": display of the audio, CD changer and on board ECU settings,

Zone "h": display of the "central locking" and "child safety" symbols,

Zone "l": display of the symbols linked to the radio information.

The functions associated to the multifunction screen B are:

• Display of the time, date and external temperature,

• Display of the information linked to the radio and CD changer,

• On board ECU,

• Vehicle warnings.

F - INTEGRATED BUZZER

The buzzer integrated into the control panel produces 5 types of sound:

• "Flashing" type sound D1,

• "Overspeed" type 2 tone sound D2.a,

• "Headlamps left on" type 2 tone sound D2.b,

• "Key left in ignition" type 3 tone sound D2.c,

• "Warning beep" type sound D3.

A sound is emitted in the following situations:

• when certain messages appear on the multifunction screen,

• when certain LEDs illuminate,

• when a warning not associated to a message or an LED appears.



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Chapter 2

MESSAGES AND WARNINGS FUNCTION

I - DISPLAY

Long messages are displayed in two stages in zones "a" and "b". Sequence 1 (called SEQ1) is displayed followed by sequence 2 (called SEQ2).

The time for which the messages are displayed depends on their appearance priority.

II - PRIORITY LEVELS

Three display priorities are defined for warnings on the control panel:

• P0: Warning which cannot be acknowledged by the driver, displayed until the fault disappears or the ignition is switched off,

• P1: Warning which can be acknowledged by the driver, displayed until the fault disappears or the ignition is switched off or by pressing one of the buttons on the control panel,

• P2: Timed warning, displayed until the fault disappears or the ignition is switched off or the end of the 6 second timer or by pressing one of the buttons on the control panel. This degree of priority is only valid if the associated warning is unique.



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Chapter 2

III - WARNINGS FROM WIRE INFORMATION

TYPE OF WARNING

SEQ ASSOCIATED MESSAGELED

PRIORITY; BUZZER

APPEARANCE CONDITIONS

ZONE "a" ZONE "b"

Brake fluid / hydraulic level warning

12

TOP_UP BRAKE_FLUID P1;V8;D3single sound

+ig on* (V≥0) AND fluid level low


12

STOPOIL_PRESSURE LOW

P1;V9;D3*repetitive sound

+ig on* AND Oil pressure low

Brake distributor fault

WARNING BRAKE_FAULT P1;V8;D3single sound

+ig on* AND braking system faulty

Passenger's AIRBAG deactivated

P1;V11;D3single sound

+ig on* (V≥0) AND passenger's airbag deact-ivated by key

Parking brake on

PARKING BRAKE P1;V8;D3 repetitive sound 10s max

+ig on* AND parking brake on AND V> 10 Km/h

Coolant level warning (DW10 engine only)

TOP_UP WATER_LEVEL P1;D3single sound

+ig on* AND coolant level low

Low fuel WARNING LOW_FUEL P2;V17 +ig on* AND low level reached

Front airbag fault

P1;V11;D3* single sound

+acc/+ig on* AND airbag fault

Side airbag fault

P1;V10;D3*single sound

+acc/+ig on* AND airbag fault

ABS fault ABS_FAULT NON_FUNCTION P1;V5;D3single sound

+ig on* AND ABS fault

Maintenance ARRANGE SERVICE P2;V19 +acc AND key flashing

External temperature warning

RISK OF_ICE P2;D3single sound

+acc AND -3°C<T<+3°C

Overspeed warning

PROG_SPEED XXX_KM/H P2;D2asingle

V≥130 Km/h(programmable)

* Engine running or not



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Chapter 2

IV - WARNINGS FROM THE VAN FRAMES

TYPE OF WARNING

SEQ ASSOCIATED MESSAGELED

PRIORITY; NOISE

APPEARANCE CONDITIONS

ZONE" a" ZONE" b"


12

STOPENGINE

TEMPER-ATURE

P1;V18;D3(repetitive sound)

+acc/+ig on* AND T°≥118°C

Battery charging fault

12

BATTERY FAULT P1;V7;D3* +acc/+ig on*/+cranking AND +EXC≤+BAT-2.5V

Boot open BOOT OPEN P1;D3* Boot openAND +acc/+ig on*

Rear RH door open

RR RH DOOR OPEN P1;D3*

Rear LH door open

RR LH DOOR OPEN P1;D3*

Bonnet open BONNET OPEN P1;D3*Front RH door open

FT RH DOOR OPEN P1;D3*

Front LH door open

FT LH DOOR OPEN P1;D3*

Engine immobiliser system fault

12

ENGINE IMMOBILISER

FAULT P1 +ig on/+cranking AND system faulty

HF plip battery worn

CHANGE REMOTE

BATTERY CONTROL

P1 +acc/+ig on* AND battery low

Impact sensor 12

RE-ARM INERTIA SENSOR

P0 +acc/+ig on AND impact detected

Headlamps left on reminder warning

HEADLAMPS LEFT ON P1;V12;D2b (repetitive sound emitted 10 min max)

Headlamps onAND Driver's door open (+acc/+ig on missing)

Key left in ignition reminder warning

KEY LEFT IN IGNITION P1;D2crepetitive

Key present(+acc/ +ig on missing 2s) AND Driver's door open

Overspeed warning active

12

WARNINGSPEED

ACTIVE P1 Overspeed activation in on-board ECU

Overspeed warning inactive

12

WARNINGSPEED

INACTIVE P1 Overspeed deactivation in on-board ECU

"Economy mode" active

ECONOMY MODE

ACTIVE P1 The engine does not run for 30 mins

• engine running or not



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Chapter 3

INSTRUMENTATION FUNCTION

I - COOLANT TEMPERATURE GAUGE AND WARNING FUNCTION

A - GENERAL

Table of correspondence between Coolant temperature / zone illuminated:

ZONE a b c d e f g

TEMPERATURE °C FIXED T≥ 60 T≥ 75 T≥ 100 T≥ 110 T≥ 115 Warn-ing



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Chapter 3

B - LAYOUTS

1 - EW7J4, DW10TD and TU5JPL4 engines



COMPONENTS

BSI Built-in systems interface0004 Control panel (LEDs + microprocessor)1220 Temperature sensor1320 Engine management ECU

Signal type:

1 - Current depending on temperature.

2 - Square signal (PWM) for the temperature and All or nothing for the warning.

3 - VAN frame containing the temperature and possibly the warning information.



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1 3

2

1220

1320BSI

0004

Chapter 3

2 - TU5JPL3 engine without air conditioning



COMPONENTS

BSI Built-in systems interface

0004 Control panel (LEDs + microprocessor)

4025 Temperature sensor + coolant thermoswitch

Signal type:

4 - Current depending on temperature.

All or nothing signal (possible warning).

5 - VAN frame containing the temperature and possibly the warning information.



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4

4025

BSI

0004

Chapter 3

3 - TU5JPL3 engine with air conditioning



COMPONENTS



1220 Temperature sensor

8010 Coolant temperature housing

Signal type:

6 - Current depending on temperature

7 - Current depending on temperature

8 - All or nothing signal (warning)

9 - VAN frame containing the temperature information



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6

1220BSI

0004

1220

8010

7

9

Chapter 3

C - OPERATING MODES

1 - Operating phases

Nominal operation: see layouts and correspondence table.

• DW10TD, EW7J4 and TU5JPL4 engines:

The engine coolant temperature sensor (variable resistor) is connected to the engine management ECU. This converts the signal from the sensor into a variable frequency signal and sends it to the BSI. The engine management ECU also transmits the warning signal to the BSI.

The BSI encodes this information in a VAN frame to be sent to the control panel.

The coolant temperature gauge illuminates the corresponding temperature segments.

• TU5JPL3 engine

The temperature sensor supplies its current directly to the BSI. In AIR CONDITIONING mode, the temperature warning is given by an engine coolant temperature management unit.

2 - Specific operating cases

• Overheating warning

The BSI encodes a sound and a warning message in the VAN frame in addition to the temperature.

The 6 zones and the warning LED "g" are illuminated, a "warning beep" type sound is emitted repeatedly and the following message is displayed "STOP ENGINE TEMPERATURE".

• Downgraded mode

If the temperature sensor develops a fault, the BSI places a specific temperature code value in the VAN frame.

In the event of an invalid value, the control panel only illuminates zone "a".



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Chapter 3

II - FUEL LEVEL GAUGE FUNCTION

A - GENERAL

The following table gives the amount of fuel remaining as a function of the segment illuminated on the gauge:

⇒ petrol vehicle

ZONE h V17: WARNING j k lLITRES 0 ≤ V V< 6 6 ≤ V 12.5 ≤ V 18.5 ≤ V

ZONE m n p q r

LITRES 24.5 ≤ V 30.5 ≤ V 36.5 ≤ V 42.5 ≤ V 49 ≤ V

⇒ diesel vehicle

ZONE h V17: WARNING j k lLITRES 0 ≤ V V< 5 6.5 ≤ V 13.5 ≤ V 20 ≤ V ZONE m n p q rLITRES 26.5 ≤ V 33.5 ≤ V 40 ≤ V 46.5 ≤ V 53.5 ≤ V



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Chapter 3

B - LAYOUT



COMPONENTS



1320 Engine management ECU

4315 Fuel sender

Signal type:

10 - Current depending on level of fuel in the tank

11 - Variable frequency signal depending on fuel flow

12 - Low fuel information signal

13 - VAN frame containing the gross fuel level given by the sender, the fuel level calculated by the control panel and the low fuel information

14 - VAN frames containing the vehicle consumption information



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10

4315

13

BSI

1320

12

0004

14

Chapter 3

C - OPERATING MODES

1 - Operating phases

• When the ignition is switched on.

The control panel compares the last fuel level displayed with the level indicated by the fuel sender (variable resistor fitted with a float).

In the event of a significant difference, the gross level information is displayed otherwise the last fuel level displayed is given.

• When driving.

The fuel sender is no longer used.

The engine management ECU supplies the fuel flow information to the BSI.

The BSI calculates the vehicle's fuel consumption and encodes this information in a VAN frame.

The control panel takes this consumption information into account in order to calculate the fuel level. Finally, it transmits this level to the BSI via the VAN.

2 - Specific operating cases

• Low fuel warning

From a certain sender value, the control panel transmits the low fuel information to the BSI via the VAN in addition to the fuel level with the aim of warning the engine management ECU.

In addition, it displays the warning message "WARNING LOW FUEL". LED V17 is illuminated.

Note: The fuel capacity can be programmed depending on the vehicle engine (petrol or diesel).



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Chapter 3

III - SPEEDOMETER FUNCTION

A - GENERAL

The instantaneous speed of the vehicle is displayed on the digital displays of the instrumentation screen.

The driver can access the choice of measurement units (KM/H or MILES). The units are changed using the menu of the multifunction screen (refer to the Clock/Date/Temperature function). The units selected by the driver are stored and recalled the next time the ignition is switched on.

B - LAYOUT



COMPONENTS



1620 Vehicle speed sensor

Signal type:

15 - variable frequency signal proportional to the speed of the front wheels.

16 - VAN frame containing the instantaneous speed information.



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16

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15

0004

Chapter 3

C - OPERATING MODE

1 - Operating phase

Nominal operation: see layout

The speed sensor (located on the gearbox) supplies the BSI with a variable frequency signal.

The BSI calculates the instantaneous speed of the vehicle and encodes it in a VAN frame.

The control panel takes this information from the VAN network and displays it.

Specific operating cases

2 - Overspeed warning

The driver can access the choice of overspeed limit and does this using the menu of the multifunction screen on the control panel.

When the vehicle reaches this speed, the multifunction screen on the control panel displays the message: "PROG_SPEED XXX_KM/H". A two tone sound is emitted.

Note: this function is deactivated by default.



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Chapter 3

IV - MILEOMETER FUNCTION

A - GENERAL

Role: mileometer

The mileometer consists of two digital displays:

• the main mileometer,

• the tripometer.

B - LAYOUT

Refer to the speedometer layout.

C - OPERATING MODE

The BSI calculates the total distance travelled since the vehicle was first used from a signal supplied by the speed sensor. It then encodes the value in a VAN frame and sends it to the control panel.

The main mileometer displays the total distance travelled. The control panel calculates the distance travelled by the vehicle since the last time the tripometer was reset and displays this on the tripometer.

Note: The tripometer is reset when the ignition is on by pressing the button at the bottom left of the control panel (RESET).

D - SAVING THE DISTANCE TRAVELLED

The distance travelled is memorised in the control panel.

When the ignition is switched on, the BSI reads the distance memorised in the control panel and compares it with its own stored mileage. The BSI and the control panel store the largest of the two figures.

IMPORTANT:it is forbidden to perform diagnostics by substituting parts!



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V - MAINTENANCE INDICATOR FUNCTION

A - GENERAL

1 - Role

The aim of the maintenance indicator is to improve the service to the customer by automatically showing when the next servicing operation is due.

Interval between maintenance operations.

Engine Usage mode frequency of maintenance operations*

Petrol Normal 20000 Km or 12500 miles or 1 yearSevere 15200 Km or 10000 miles or 1 year

Diesel HDI Normal 20000 Km or 12500 miles or 1 yearSevere 15200 Km or 10000 miles or 1 year

* The frequency of maintenance operations (in distance or time) can be programmed by the diagnostic tool.



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2 - Display

Zone "h": maintenance indicator.

Every time the engine is started, the distance remaining is displayed on the mileometer. LED V19 either illuminates or not.

Service interval >2000 Km

Service interval <2000 Km

Service interval exceeded

Display 0 - 2s More 0 - 5s More 0 - 5s MoreMileometer and tripometer X X XDistance remaining or exceeded

X X X

Key (LED V19) X X X (flashing) XMessage X X X X X

Note: The message can be acknowledged by the driver or disappears itself 12 seconds after LED V19 starts flashing.

B - LAYOUT

Refer to the speedometer layout.



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Chapter 3

C - OPERATING MODES

1 - Nominal mode

The BSI calculates the total distance travelled from the signal supplied by the speed sensor. It then encodes the value in a VAN frame and sends it to the control panel.

The control panel calculates the distance remaining to be travelled before the next service using the following parameters:

• the maintenance frequency stored in the control panel (this is decremented as miles are driven),

• the time elapsed (incrementation of the number of days).

As soon as one of these parameters (time or remaining miles) becomes due, the multifunction screen indicates that the servicing date has been exceeded (LED V19 flashes, remains illuminates and the message remains displayed).

2 - Configuring the usage mode

The following procedure is used to select the Severe or Normal usage mode of the vehicle.

1 - Press the Tripometer reset button.

2 - Switch on the ignition.

3 - Release the button within 10 seconds.

The instrumentation screen displays a key (LED V19) and the current configuration of the vehicle, directly displaying the frequency of maintenance operations.

Pressing the reset button briefly switches between the configuration modes.

4 - Press for 10 seconds to validate.

The procedure exits automatically.

5 - Switch off the ignition.



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3 - Initialising the maintenance indicator

The initialisation procedure is used to assign a new mileage value and a new time value to the system.

The procedure is as follows:

1 - Press the Tripometer reset button.


The display shows a key (LED V19) and a 10 second counter starts to count down.

3 - Keep the Reset button pressed during these 10 seconds.

The key disappears and the reading "=0" appears. The operation is validated.

4 - Switch off the ignition to quit initialisation.



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VI - CLOCK / DATE / TEMPERATURE FUNCTION

A - GENERAL

When these parameters are lost (i.e. after disconnecting the battery), the time displayed starts at "12: 00 PM" and the date displayed by default is 01 - 01 - 99. Each item (time and/or date) flashes until adjustment mode has been selected. By default, the language is French and the units are degrees Celsius and KM/H.

B - ADJUSTING SCREEN B

Buttons "u" and "v" located on the right hand side of the control panel are used to do this.

When the display is normal (no warnings, etc), pressing button "u" briefly changes the display to the date.

Pressing this button at any time for a long period returns to adjustment mode.

Every time this button is pressed again briefly, the parameter to be adjusted changes until adjustment mode is exited.

Conditions for exiting adjustment mode:

• Button not pressed for 6 seconds,

• Pressing button "u" for a long time.



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Parameters (in the scrolling order):

Parameters Description of the parameter to be displayed

Value of the parameter to be displayed

Languages FRANCAIS; ENGLISH; DEUTSCH; ITALIANO; ESPANOL; etc.

Hours (tens then units): 0 (or 12 AM depending on configuration)

HOUR 12 AM (or 12 for 24H configuration)

Minutes (tens then units): 00 MINUTES 01Year (tens then units) 1998 (parameter: 98)

YEAR 2000

Month (tens then units): 01 MONTH 01Day (tens then units): 01 DAY 01Time format (12h / 24h) 12H/24H 12H (or 24H)Temperature units (°C / °F) °C/°F °C (or °F)Speedometer and mileometer units (KM/H - MPH)

KM/H-MPH KM/H (or MPH)

Exit adjustment mode

After the language has been selected, the HOUR, MINUTES, YEAR, MONTH and DAY parameters will be displayed in the configured language.

The possible languages are:

French, Spanish, Italian,

English, Portuguese, German,

Dutch.

Every time button "v" is pressed, the parameter to be adjusted is incremented.

Note: For the YEAR parameter, switching from 1900 to 2000 will occur automatically for all parameter values less than 99.



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Chapter 4

LIGHTING FUNCTION

I - RHEOSTAT FUNCTION

A - GENERAL

The + and - rheostat buttons are used to vary the brightness level of the lighting of the displays, except that of the warning LEDs.

B - LAYOUT



COMPONENTS



8080 Air conditioning compressor

8410 Radio

a "Night driving" push button

Signal type:

1 - VAN frames containing the brightness status of the LEDs



88

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8410 8080

11

0004

a

Chapter 4

C - OPERATING MODES

1 - Principle

The control panel encodes the brightness level in a VAN frame to be sent to the BSI. The BSI transmits the information to the air conditioning and radio ECUs (RD2 only).

2 - downgraded mode

If one of the buttons is jammed, an intermediate brightness level is used by default.

II - NIGHT DRIVING FUNCTION

A - GENERAL

This function is used to extinguish all the LEDs on the control panel as well as the air conditioning display which generate light which may be tiring at night. Only the vehicle speed remains illuminated.

Warnings automatically cause the corresponding LED to illuminate.

B - LAYOUT

Refer to the rheostat function layout.

C - OPERATING MODES

• PRINCIPLE

The control panel encodes the status of the night driving function in a VAN frame to be sent to the BSI.The BSI transmits the information to all the ECUs involved.

• ACTIVATION

This function is activated using button "a".



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Chapter 4

• DEACTIVATION

If an event occurs, this causes the zone in question to be re-illuminated in accordance with the table below:

EVENT DISPLAY DURATION

Brief press on one of the 4 buttons (user request)

All information on the control panel and multifunction screen

Until button "a" is pressed again

Engine overheating Coolant temperature gauge

event duration

Fuel level < 15 litres Fuel level gauge Until the ignition is switched off or fuel added

Warning Screen message without displaying the time, temperature, etc

Until the ignition is switched off or end of message timer (see message function)

Action on radio Screen display Timed for 6 seconds after last user action

Action on on-board ECU Screen display Timed for 6 seconds after last user action



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Chapter 5

ON-BOARD ECU FUNCTION

I - GENERAL

A - ROLE

The on-board ECU controls the display of the following information:

• Instantaneous consumption,

• Average consumption,

• Range,

• Average speed,

• Total distance travelled,

• Overspeed warning.

B - DISPLAY

Pressing the on-board ECU button briefly (located on the end of the stalk on the steering wheel) is used to switch to the next display.

The display is in digital form combined with a combination of icons on the multifunction screen to specify the type of information displayed.

ICONS DESCRIPTION

a vehicle coming from a round sign showing the last time the parameters were reset for the journey parameters (average speed,

average consumption)

a vehicle going towards a petrol pump for the range

a vehicle on its own for the instantaneous consumption



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II - LAYOUT



COMPONENTS




1620 Speed sensor

4315 Fuel sender

7205 On-board ECU scroll switch

Signal type:

1 - variable frequency signal proportional to the speed of the front wheels

2 - variable frequency signal depending on fuel flow

3 - all or nothing signal

4 - current depending on gross fuel level

5 - VAN frames containing information from the on-board ECU for display

6 - VAN frame containing the fuel level.



93

BSI

1620

12

4315

1320

3

4

7205

56

0004

Chapter 5

III - OPERATING MODES

Nominal operation:

The BSI calculates the "range" with the fuel consumption and the amount of fuel remaining supplied by the control panel.

After acquiring the signal from the speed sensor, the BSI calculates the following parameters:

• "journey distance" since last reset,

• "average journey consumption" since last reset,

• "instantaneous consumption" with fuel flow information supplied by the engine management ECU,

• "average journey speed" since last reset,

• the BSI encodes this information in VAN frames to be sent to the control panel. The multifunction screen displays them.

Reset:

Pressing the on-board ECU switch for a long time on the steering wheel stalk resets the journey counters.

The BSI encodes this status on a VAN frame to be sent to the multifunction screen of the control panel.



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95

Chapter 6

ELECTRICITY

I - LAYOUT DIAGRAM

A - COOLANT TEMPERATURE WARNING AND GAUGE - TU5JP

PFM004P



96

Chapter 6

B - COOLANT TEMPERATURE WARNING AND GAUGE - DW10

PFM005P



97

Chapter 6

C - PETROL LEVEL GAUGE - EW7

PFM006P



98

Chapter 6

II - PARTS LIST

BB00 - Battery











0005 - Wiper stalk


1020 - Alternator





















99

Chapter 6
























8410 - Radio












100

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101

PART 5

DRIVER'S INFORMATION XSARA



102



103

Chapter 1

GENERAL

I - FOREWORD

The control panel is normal in appearance but several of its functions are multiplexed (mileometer, etc). Refer to the tables corresponding to the layout.



104

Chapter 1

II - LAYOUT

The control panel receives information along the wires and by communicating with the ECUs via the VAN network.



COMPONENTS

BSI Built-in systems interface0004 Control panel (LEDs + microprocessor)

A Pressure switchOil level sensorControls at the steering wheelCentral airbag ECUsSide airbag ECUsPresence of water sensorBrake pad sensorSeatbelt contactOil temperature sensorOil level sensorFuel senderBrake fluid senderParking brake contactABS valve blockAutomatic gearbox ECU



105

BSI

32

0004

A1

Chapter 1

CONNECTIONS

N° Signal Type

1 Low oil pressure All or nothing

Low coolant level All or nothing

Sidelamps status All or nothing

Dipped beam status All or nothing

Front airbag fault All or nothing

Side airbag fault All or nothing

Front and rear fog lamps control All or nothing

Water in diesel* All or nothing

Brake pad wear / Stop lamps All or nothing (2 inputs)

Presence of driver's seatbelt All or nothing

LPG level analogue

Brake fluid hydraulic level All or nothing

Oil level Analogue

Parking brake status All or nothing

ABS fault LED active

Electronic brakeforce distribution fault All or nothing

Auto gearbox selector position information Square

2 Low fuel VAN

Filtered fuel level VAN

Gross fuel level VAN

ABS fault VAN

Auto gearbox fault VAN

Brake fluid fault VAN

Oil temperature VAN

Parking brake VAN

Dipped beam VAN

Saved journey distance VAN

Low oil pressure VAN

Electronic brakeforce distributor fault VAN

Control panel brightness level VAN



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Chapter 1

CONNECTIONS

N° Signal Type

3 Engine speed information VAN

Vehicle speed information VAN

Distance information VAN

Coolant temperature information VAN

Factory/customer mode VAN

Ignition key position VAN

Economy mode VAN

Engine running VAN

Coolant temperature warning VAN

Door open, engine running VAN

EOBD/Engine management fault VAN

Battery charge fault VAN

Electronic engine immobiliser system fault VAN

Illumination of indicator LEDs VAN

Lamps on reminder warning VAN

Key in ignition reminder warning VAN

Overspeed warning VAN

Day/night status VAN

Brightness level VAN

Set to stand-by in 5 seconds VAN

Activation of control panel VAN

Pre-heating information VAN

Auto gearbox safety warning VAN

Total mileage VAN

Heated rear screen activated VAN

* depending on equipment



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Chapter 2

WARNING FUNCTION

I - LIST OF LEDS

LED FUNCTIONV1 Rear fog lampV2 Front fog lampV3 Brake pad wear indicator*V4 Coolant temperature warningV5 Engine management diagnosticV6 Coolant levelV7 SeatbeltV8 Diesel pre-heatingV9 Transponder faultV10 Dipped beamV11 Main beamV12 Water in dieselV13 Low fuel warningV14 ABSV15 Side airbagV16 Front airbagV17 Rear screenV18 Brake faultV19 Battery chargeV20 StopV21 Oil pressureV22 Parking brakeV23 Left hand indicatorV24 Doors openV25 Right hand indicatorV26 LPG operationV27 Auto gearbox position display

* depending on equipment

Note 1: All possible LEDs are represented on the control panel above but this model of control panel does not actually exist.

Note 2: The LEDs cannot be replaced. If a bulb blows, replace the control panel.



108

V6/V26 V22V18 V21 V12V19

V10

V20

V14

V16V17

V13

V11

V7

V15

V3

V4

V5

V9V8

V2V24V27V1

Chapter 2

II - INTEGRATED BUZZER

The buzzer integrated into the control panel produces 4 types of sound:

• "Relay clicking" type sound N1,

• "Intermittent" type sound N2,

• "Continuous" type sound N3,

• "Intermittent sound at twice the speed of N2" type sound N4.

III - WARNING APPEARANCE CONDITIONS

A - WARNINGS FROM WIRE INFORMATION

LED; NOISE TYPE OF WARNING APPEARANCE CONDITIONS

N3 only Low oil level +acc/+ig onkey Maintenance key +acc AND service imminentV6 Coolant level warning +ig on* AND coolant level low

V13 Low fuel +ig on* AND low fuel reached

V15 Side airbag fault +ig on* AND airbag faultV16 Front airbag fault +ig on* AND airbag faultV16 Passenger's AIRBAG

deactivated+ig on* AND

passenger's airbag deactivatedV14; N3 only ABS fault +ig on* AND ABS faultV18; N3 only Brake fluid / hydraulic

level warning+ig on* AND fluid level low

V18; N3 only ABS fault +ig on* AND ABS faultV18; N3 only Electronic brakeforce

distributor fault+ig on* AND braking system faulty

V20; N4 Low oil pressure warning

+ig on* AND oil pressure low

V21; N4 Low oil pressure warning

+ig on* AND oil pressure low

V22; N3 Parking brake +ig on* AND parking brake on AND V> 10 Km/h



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Chapter 2

B - WARNINGS FROM VAN FRAMES

LED; NOISE TYPE OF WARNING APPEARANCE CONDITIONS

N2 Lamps on reminder warning

Headlamps on AND driver's door open (+acc/+ig on missing)

N2 Key in ignition reminder warning

Key present(+acc/+ig on missing) AND driver's

door openN2 Auto gearbox position

warningKey in position S or not inserted AND

driver's door open AND lever in position other than P

N3 Overspeed warning V≥130 Km/h(programmable in the BSI)

V4 Coolant temperature warning

+ig on* AND T° too high

V5 Engine management / EOBD fault

+ig on AND engine ECU fault

V8 Diesel pre-heating +ig on AND pre-heating in progressV9; N3 Unknown transponder

fault+ig on/+cranking AND

faulty system (unknown transponder)V17 Heated rear screen +ig on*/+cranking AND

heated rear screen activatedV19; N3 Battery charging fault +ig on*

AND +EXC≤+BAT-2.5V

V20 flashingN4 active for 10s


+acc/+ig on* AND T° too high

V24; N3* RRH door open 1 door openV24; N3* RLH door open ANDV24; N3* FRH door open +acc/+ig on*V24; N3* FLH door open

V27 Auto g/b position indicator

+ig on*/+cranking

* Engine running or not



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Chapter 3

INSTRUMENTATION FUNCTION

When the ignition is switched on, the digital display shows:

• for 2 seconds: the maintenance indicator

• for 5 seconds maximum: the oil level gauge

• and finally: the mileometer (until the ignition is switched off)

I - MAINTENANCE INDICATOR

A - GENERAL

1 - Interval between maintenance operations

Engine Usage mode* frequency of maintenance operations

Petrol/diesel HDI Normal 20000 Km or 12500 miles or 1 yearSevere 15000 Km or 10000 miles or 1 yearCustomised Multiples of 500 Km or 1 month

Diesel (excl. HDI) Normal 15000 Km or 10000 miles or 1 yearSevere 10000 Km or 6000 miles or 1 yearCustomised Multiples of 500 Km or 1 month

2 - Case of more than 2000 km to service

• The maintenance indicator shows the distance remaining for 2 seconds.

• The "key" symbol illuminates for 2 seconds then disappears.

3 - Case of less than 2000 km to service

• The maintenance indicator shows the distance remaining for 5 seconds.

• The "key" symbol illuminates for 5 seconds then disappears.

4 - Case of interval exceeded

• The maintenance indicator shows a zero distance remaining.

• The "key" symbol flashes for 5 seconds then disappears.



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Chapter 3

B - FUNCTIONAL DESCRIPTION

The BSI calculates the total distance driven from the signal supplied by the speed sensor. It then sends this to the control panel via the VAN network.

The control panel calculates the distance remaining to be travelled before the next service using:

• the maintenance frequency stored in the control panel (this is decremented as miles are driven),

• the time elapsed (incrementation of the number of days).

As soon as one of these parameters (time or remaining miles) becomes due, the multifunction screen indicates that the servicing date has been exceeded (the key flashes).

Note 1: When the time reaches one year, the maintenance indicator behaves as if the distance remaining were zero (the "key" symbol flashes).

Note 2: If the battery is disconnected, the time is no longer incremented.

C - INITIALISING THE MAINTENANCE INDICATOR

The procedure is as follows:

1 - Press the left hand button (Tripometer reset button).


The display shows a key and a 10 second counter starts to count down to 0.

3 - Keep the button pressed until 0 is reached then release it.

The maintenance indicator displays the mileage to be travelled before the next service (it is equal to the maintenance frequency). The key disappears.

4 - Switch off the ignition to quit initialisation.



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Chapter 3

II - OIL LEVEL GAUGE

General

The amount of oil left in the engine is displayed in accordance with the graphics below for a maximum of 5 seconds:

The number of squares illuminated is proportional to the potential difference at the terminals of the oil level sensor:

SCREEN COMMENT DISPLAYCORRESPONDING

POTENTIAL DIFFERENCE

1 Max level 6 squares illuminated ∆U=90mV 2 Min level 1 square illuminated ∆U=440mV 3 Level < min No squares illuminated.

6 lines flash, warning beep N3, word MIN

∆U>440mV

4 Oil level sensor short circuited or disconnected

Screen flashes for 5 seconds

Functional description

• The control panel sends a current of 195 mA (for approximately 2 seconds) into the oil level sensor.

• The control panel measures the potential difference (noted ∆U) at the sensor terminals.

• The control panel converts this potential difference into a number of squares to be displayed.



114

MIN MAX MIN MAX

MIN MAX MIN MAX

1 2

3

4

Chapter 3

III - MILEOMETER

A - GENERAL

The control panel has two mileometer lines

• 2 tripometers called a and b (zone "b").

− switch from a to b by briefly pressing the left hand button,

− reset them by pressing and holding the left hand button.

• 1 main mileometer (zone "a").

Screen

B - FUNCTIONAL DESCRIPTION

The BSI acquires the signal supplied by the speed sensor located on the gearbox. It then calculates the total number of miles and sends it to the control panel via the VAN network.

The control panel displays this mileage value on the main mileometer. From this value, it increments the tripometers a and b.

Note: On vehicles fitted with control panels in miles, the control panel converts the kilometres into miles.

C - SAVING THE DISTANCE TRAVELLED

The distance travelled is memorised in the control panel.

When the ignition is switched on, the BSI reads the distance memorised in the control panel and compares it with its own stored mileage. The BSI and the control panel store the largest of the two figures.

IMPORTANT:it is forbidden to perform diagnostics by substituting parts! (storing of highest mileage)



115

b

a

Chapter 4

REPAIRING THE CONTROL PANEL

I - READING AND ERASING FAULTS

Using the diagnostic tool, the following points can be read:

• identification of the PSA N° and the development index of the control panel,

• communications faults on the multiplexing,

• wire and multiplexed input faults on the control panel.

II - PROGRAMMING THE MAINTENANCE TYPE

Using the diagnostic tool, the following points can be programmed in the maintenance indicator:

• normal or severe configuration,

• customisation of the maintenance frequency as a distance (multiplies of 500 km),

• customisation of the maintenance frequency as a duration (multiples of 1 month),

• activation/deactivation of the maintenance indicator.

III - ACTUATOR TEST

Using the diagnostic tool, the following functions can be tested:

• mileometer (main mileometer and tripometer),

• speedometer,

• rev counter,

• fuel sender,

• coolant temperature gauge,

• oil temperature gauge,

• automatic gearbox position indicator,

• oil level,

• LEDs and symbols,

• the buzzer,

• change in lighting.



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Chapter 4

IV - READING THE FOLLOWING PARAMETERS

Control panel:

• viewing the activation status of certain LEDs (ABS, automatic gearbox, AIRBAG),

• viewing the maintenance type (missing/present, classic/developed, normal/severe).

• fuel sender and coolant temperature sender table.

All or nothing and other inputs on the control panel:

• oil min level/min pressure warning,

• oil temperature,

• side/front airbag LED,

• coolant level warning,

• driver's seatbelt,

• parking brake,

• Electronic Brakeforce Distributor fault/ABS fault,

• automatic gearbox fault,

• brake fluid level,

• fuel level,

• low fuel information,

• brightness level,

• dipped beam,

• change in status of all or nothing inputs

Control panel buttons:

• rheostat button,

• tripometer reset button.



117

PART 6

VISIBILITYXSARA AND XSARA PICASSO



118



119

Chapter 1

GENERAL

I - FOREWORD

The Built-in Systems Interface controls the visibility function:

FUNCTION XSARA PICASSO

XSARA

Control of the windscreen wipers linked to the vehicle speed without rain sensor

X

Windscreen wipers with rain sensor *

Intermittent wipe mode of the rear wiper linked to vehicle speed and windscreen wiper mode

X

Management of wiper parked positions X X

Protection of wiper motors X X

De-icing of heated rear screen X X

Timer for headlamp washers *

* = Depending on equipment



120

Chapter 1

II - GENERAL LAYOUT

COMPONENTS

BSI Built-in Systems Interface.

8080 Automatic climate control (RFTA) on XSARA PICASSO only.

A Heated rear screen switch (without RFTA)

Windscreen wiper motor.

Rear screen wiper.

Steering wheel stalk

Rain sensor (XSARA only)

B Windscreen wiper motor

Rear wiper motor

De-icing LEDs of the heated rear screen and door mirrors (without RFTA climate control).

Steering wheel stalk

Windscreen and rear screen washer

Headlamp washer (XSARA only)

Heated rear screen and door mirrors.



121

BSI

8080

A B

4 3

21

Chapter 1

CONNECTIONS

n° Signal Type

1 Heated rear screen activation request (without RFTA) All or nothing

Parked position information of windscreen wiper motor All or nothing

Parked position information of rear wiper motor All or nothing

Windscreen washer request All or nothing

Rear screen washer request All or nothing

Windscreen wiper intermittent wipe request All or nothing

Windscreen wiper slow speed request All or nothing

Windscreen wiper high speed request All or nothing

Rear wiper request All or nothing

Supply (+ accessories) Supply

Rain detection information (XSARA only) Analogue

2 Windscreen wiper motor high speed control All or nothing

Windscreen wiper motor slow speed control All or nothing

Rear wiper motor control All or nothing

De-icing and heated door mirrors LED control (except RFTA climate control).

All or nothing

Accessories position output for steering wheel stalk, windscreen and rear screen washer

All or nothing

3 Heated rear screen activation request (RFTA only) VAN

4 Heated rear screen functional status (RFTA only) VAN



122

Chapter 1



123

Chapter 2

OPERATING PRINCIPLE

I - WINDSCREEN WIPER FUNCTION

A - BASIC FUNCTIONS

Function:

The wiper stalk for the windscreen wiper function provides the driver with the choice between several control options:

CONTROL DESCRIPTION

Windscreen wash/wipe control Used to wipe the screen continuously when the screen washer is activated.

Windscreen wiper one touch control Used to activate the wipers at slow wipe speed. If the request is maintained, the wipers will wipe continuously at slow speed.

Intermittent / automatic wiper control Without rain sensor: used to wipe the screen at regular intervals, at slow speed. A single wipe cycle is controlled between two parked positions. This timer is linked to the vehicle speed on the XSARA PICASSO

With rain sensor: used to select automatic mode on the XSARA

Slow speed wiper control The wiper control is activated continuously at slow speed

High speed wiper control The wiper control is activated continuously at high speed

Note: Windscreen wiper requests are only taken into consideration by the BSI when the ignition is on.



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Chapter 2

B - CONTROLLING THE WINDSCREEN WIPERS LINKED TO VEHICLE SPEED WITHOUT RAIN SENSOR

This function contains 2 sub-functions which relate only to the XSARA PICASSO:

FUNCTION OPERATION

Intermittent mode linked to vehicle speed

When the windscreen wipers are operating at intermittent speed, the vehicle speed information is used to adjust the parked time between 2 wipe cycles.

Reduction in wipe speed, vehicle stationary

This function consists of reducing the wipe speed when the vehicle is stationary.If operating at high speed, slow wipe speed is used.If operating at slow speed, intermittent wipe speed is used.

Wipe speed reduction occurs from 16 km/h when decelerating. The initial speed is returned to upon reaccelerating.

C - WINDSCREEN WIPER WITH RAIN SENSOR

The BSI controls the windscreen wipers depending on the requests from the rain sensor (in the base of the interior rear view mirror), on the Xsara only. The ignition must be on and the control initialised. Communications between the rain sensor and the BSI are by means of a serial link.

IMPORTANT: When washing the vehicle, ensure that the windscreen wipers or the ignition are off to prevent them being triggered by the rain sensor.

Note: If the rain sensor is covered, the windscreen wipers will perform an initialisation wipe cycle.

D - WINDSCREEN WASHER FUNCTION

The windscreen washer pump is not controlled by the BSI. The windscreen washer control comes directly from the washer pump. The BSI controls a delayed wipe cycle of the wipers (so as not to wipe when dry). When the driver stops pressing the washer control, the wipers perform a maximum of 3 complete wipe cycles before stopping.

Note: The washer control is only taken into consideration when the ignition is on.



125

Chapter 2

II - REAR WIPER FUNCTION

On the Xsara and Xsara Picasso, the BSI controls a standard rear wiper (single motor).

A - BASIC FUNCTIONS

Function:

The rear wiper function has 3 operating modes:

OPERATING MODE DESCRIPTION

Wash / wipe control Used to wipe the screen continuously when the rear washer is activated.

Intermittent wipe control Used to wipe the screen at regular intervals. This timer is linked to vehicle speed on the XSARA PICASSO.

Wiper control linked to reverse gear Used to wipe the rear screen when reverse gear is engaged (XSARA PICASSO).

B - INTERMITTENT REAR WIPER MODE LINKED TO VEHICLE SPEED AND WINDSCREEN WIPER MODE

Function:

When the rear wiper control is requested, the BSI controls the rear wiper in intermittent mode. The parked time between 2 wipe cycles depends on the vehicle speed and the wiping speed of the windscreen wipers (XSARA PICASSO only).

C - REAR WASHER FUNCTION

Function:

The rear washer pump is not controlled by the BSI. The rear washer control controls the washer pump directly and leads to a rear screen wipe request to the BSI. When the driver stops operating the washer control, the wiper performs another 3 complete wipe cycles before stopping.

Note: The washer control is only taken into consideration when the ignition is on.



126

Chapter 2

III - MANAGEMENT OF WIPER PARKED POSITIONS

Function:

CONDITION FUNCTION

Ignition on When the wipers are switched off, all wipe cycles in progress are completed. The wipers are systematically returned to the parked position at slow speed.

When the ignition is switched off The windscreen or rear wipers stop immediately, regardless of the position of the wipers and the wiper stalk at the steering wheel.

When the ignition is switched on If the wipers are not in the parked position, the BSI controls the wiper motors at slow speed until the wipers are in the parked position.

IV - WIPER PROTECTION

Function:

The BSI is used to protect the windscreen and rear wiper motors against overheating in the event of the wipers being blocked, regardless of the operating mode requested by the user. The controls are stopped if there has not been a change in the value of the parked position after a certain time.

V - DE-ICING

Function:

When the engine is running (and alternator charging), to de-ice the heated rear screen and the door mirrors, depending on vehicle equipment.

To protect the relay, when the voltage exceeds 15 volts, the de-icing request is no longer taken into account.



127

Chapter 2

VI - HEADLAMP WASHER TIMER

This function exists on the XSARA only.

Function:

When the windscreen washer control is activated and if the dipped beam headlamps are on, the BSI controls the headlamp washer operating timer.

The dipped beam information is distributed on the Comfort VAN network by the control panel.

The headlamp washer pump is controlled by earthing a relay outside the BSI.



128

Chapter 2



129

Chapter 3

ELECTRICITY

I - LAYOUT DIAGRAM

PFM007P



130

Chapter 3

II - PARTS LIST

BB00 - Battery











0005 - Wiper stalk


1020 - Alternator





















131

Chapter 3
























8410 - Radio












132

Chapter 3



133

PART 7

LOCKING / UNLOCKINGXSARA AND XSARA PICASSO



134



135

Chapter 1

GENERAL

I - FOREWORD

Control devices:

XSARA PICASSO XSARA

BSI with integrated HF receiver BSI with integrated HF receiver

Declutchable locks on both front doors Declutchable locks on both front doors

One main key with transponder One main key with transponder

One key with remote control and transponder

One key with remote control and transponder

Central locking button on dashboard Door locking buttons

Electric boot opening button (external) One garage key with transponder (does not open boot nor glovebox) on XSARA saloon

Unlocking by internal opening control on 4 doors

Unlocking by internal opening control on 2 front doors

Deactivation of internal opening of rear doors by rotary button on door panel (child safety)

Deactivation of internal opening of rear doors by rotary button on door panel (child safety)

Doors open detection contacts Doors open detection contacts



136

Chapter 1

Viewing device:

• "System status LED" for viewing the locked status, ignition off (in the hazard warning lamps button, on the XSARA PICASSO only),

• use of indicators,

• symbol for viewing the locking status, ignition on (XSARA PICASSO only),

• symbol for viewing the child safety status on the XSARA PICASSO.

Definitions:

• a door is said to be closed if it is closed on the 2nd notch,

• the door open information is present when the + accessories is on,

• the fuel filler flap is locked with the key,

• a locking rebound consists of locking then unlocking the locks if a locking request was performed and if one of the doors is open (indicators do not illuminate),

• no locking buttons on the doors on the XSARA PICASSO.



137

Chapter 1

The BSI controls the locking / unlocking function:

FUNCTION XSARA PICASSO

XSARA

Locking / unlocking using internal button X

Opening of boot using electric button X

Unlocking in the event of an impact X

Deadlocking using the key X

Deadlocking using the plip X

Rebound function X X

Automatic locking X

Locking / unlocking using the key X X

Locking / unlocking using the plip X X

Protection of lock motors X X



138

Chapter 1

II - GENERAL LAYOUT

COMPONENTS

BSI Built-in Systems Interface with integrated HF receiver

0004 Control panel

6232 High frequency emitter for locking doors.

A Boot opening button

Central locking button

Switches of the 4 doors (door status)

Boot switch

Inertia switch (Xsara Picasso)

Contacts of 2 front locks (key)

Interior opening control of front doors (+ locking buttons on the doors on the XSARA).

B Locking actuators.

Unlocking actuators.

Deadlocking actuators

Boot opening actuators

Indicators (front, rear, left hand, right hand, side repeaters)

System status LED.



139

BSI

00046232

1

A B

2

3 4

Chapter 1

CONNECTIONS

n° Signal Type

1 Vehicle locking status information (for symbol on the instrument panel)

VAN

HF plip batteries worn warning VAN

Door open, engine running warning VAN

Door status information VAN

Control of indicators VAN

2Locking / unlocking / deadlocking request by plip Encrypted HF

3Boot opening request All or nothing

Locking / unlocking request by button All or nothing

Door status information All or nothing

Boot opening status information All or nothing

Impact detection input (Xsara Picasso) All or nothing

Locking / unlocking request by key All or nothing

4Locking actuators control All or nothing

Unlocking actuators control All or nothing

Deadlocking actuators control All or nothing

Boot opening actuator control All or nothing

Indicators control (front, rear, left hand, right hand, side repeaters)

All or nothing

System status LED control All or nothing



140

Chapter 1



141

Chapter 2

OPERATING PRINCIPLE

I - LOCKING / UNLOCKING

A - LOCKING / UNLOCKING USING THE KEY

Function:

This function consists of locking or unlocking the vehicle using the key by operating the locks of the front doors.


FUNCTION LOCKING UNLOCKING

Action the BSI controls locking the BSI controls unlocking

IF condition locking order through the front locks

unlocking order through the front locks

AND condition the vehicle is unlocked the vehicle is locked

AND condition the ignition has been off for more than 3 seconds

AND condition the doors are closed (otherwise, rebound occurs)

Display Illumination of indicators and side repeaters for 2 seconds.

Illumination of system status LED

Flashing of indicators and side repeaters for 2 seconds.

Extinguishing of system status LED



142

Chapter 2

B - LOCKING / UNLOCKING USING THE PLIP

Function:

This function consists of locking or unlocking the vehicle, when the ignition is off, following an order from the HF remote control (plip).




IF condition locking order from the plip unlocking order from the plip


AND condition the ignition has been off for more than 3 seconds


Display Illumination of indicators and side repeaters for 2 seconds.

Illumination of system status LED.

Flashing of indicators and side repeaters for 2 seconds.

Extinguishing of system status LED.

Note: Two locking / unlocking orders from the HF remote control will only be performed if there is a minimum of 0.6 seconds between them.



143

Chapter 2

C - LOCKING / UNLOCKING USING THE INTERIOR BUTTON

Function:

This function consists of locking the vehicle following a request from the user by pressing the locking button located on the dashboard. All the doors and tailgate/boot will be alternately locked or unlocked every time the button is pressed.




IF condition locking order from the button unlocking order from the button



Display Illumination of system status LED or symbol on control panel (depending on key position)

Extinguishing of system status LED

Display:

• permanent correspondence between the locking status of the doors and the symbol on the control panel (if the ignition is on).

• flashing of the system status LED (ignition off) .



144

Chapter 2

D - OPENING THE BOOT USING THE ELECTRIC BUTTON

Function:

This function consists of controlling the boot lock actuator by pressing the electric boot opening control button (located on the boot).


FUNCTION UNLOCKING THE BOOT USING THE BUTTON

Action the BSI controls unlocking of the tailgate, then illuminates the boot lamp

IF condition unlocking order from the boot button

AND condition the vehicle is unlocked

AND condition the speed has not exceeded 5 km/h since the last time a door was opened

AND condition the boot is closed

The lock is fitted with a device for opening the boot from the inside, should an operating fault occur. To do this, insert a rod into the hole at the bottom left of the lock from inside the boot.

E - REBOUND FUNCTION

Function:

A rebound upon locking consists of locking then unlocking the locks if a locking request is made and if one of the doors is open (no illumination of indicators).


FUNCTION REBOUND

Action the BSI controls locking, then unlocking of the doors

IF condition a locking request is made (from any source)

AND condition the vehicle is unlocked

AND condition one of the doors is not closed to the 2nd notch

Display no illumination of indicators (since locking does not occur)



145

Chapter 2

F - AUTOMATIC RE-LOCKING

Function:

This function consists of preventing the vehicle from being left unlocked due to negligence.


FUNCTION RE-LOCKING

Action the BSI automatically relocks the vehicle

IF condition no door has been opened within 30 seconds of unlocking the vehicle.

G - UNLOCKING IN THE EVENT OF AN IMPACT

Function:

This function consists of unlocking the vehicle in the event of an impact. It is prohibited after locking using the plip or the key.


The impact is detected by an inertia switch mounted on a rigid part of the vehicle structure (mechanical switch).

FUNCTION UNLOCKING IN THE EVENT OF AN IMPACT

Action the BSI controls unlocking of the doors if an impact is detected

IF condition the impact detection input is activated

AND condition the vehicle is locked

AND condition the ignition is on

Display change in status of the symbol on the control panel

Note: This function is not totally reliable. It depends on the size and type of the impact. The fact that unlocking has occurred in the event of an impact must therefore not be communicated within the system.



146

Chapter 2

H - PROTECTION OF LOCK MOTORS

Function:

To prevent overheating, the BSI protects the lock actuators (doors and boot).


The vehicle is unlocked during the motor protection function.

FUNCTION PROTECTION OF LOCK MOTORS

Action The lock actuators are prevented from operating for 30 seconds

IF condition 10 successive locking/unlocking operations have been performed in less than 2 minutes



147

Chapter 2

II - DEADLOCKING

KEY

1 Unlocked status 4 Locking

2 Locked status 5 Unlocking

3 Deadlocked status 6 Deadlocking

7 Unlocking

Note: It is not possible to switch from the deadlocked status to the locked status.

A - DEADLOCKING USING THE KEY

Function:

This function consists of deadlocking the vehicle, using the key, after locking it by operating the front door locks when the ignition is off.


FUNCTION DEADLOCKING USING THE KEY

action the BSI deadlocks the vehicle

IF condition the door lock contact is operated for at least 0.7 seconds (definable)

AND condition the vehicle has been locked for less than 5 seconds (definable)

AND condition all the doors are closed

AND condition the ignition is off

Display illumination of indicators for 2 seconds (extinguished for 0.5 s beforehand if they were illuminated)



148

3

4

7 6

5

21

Chapter 2

B - DEADLOCKING USING THE PLIP

Function:

This function consists of deadlocking the vehicle after locking it, when the ignition is off, following an order from the HF remote control.


FUNCTION DEADLOCKING USING THE PLIP

Action the BSI deadlocks the vehicle

IF condition the locking button on the HF remote control is pressed

AND condition the vehicle has been locked for less than 5 seconds (definable)

AND condition all the doors are closed


Display illumination of indicators for 2 seconds (extinguished for 0.5 seconds beforehand if they were illuminated)



149

PART 8

AUTOMATIC CLIMATE CONTROLXSARA PICASSO



150



151

Chapter 1

GENERAL

I - FOREWORD

The automatic climate control system allows the user to control the operation of the air conditioning-heating system automatically, by adjusting:

• the air flow (blower motor),

• the air temperature (mixing),

• the distribution of air in the passenger compartment (distribution),

• the air inlet (recycling),

• the air conditioning function.

The desired temperature is obtained by setting the mixing flap, controlled by a stepper motor, to the correct position.

The heating is provided by a heater matrix in the engine coolant circuit.

The cold air is produced by a traditional cooling system through an evaporator.

The air flow is provided by a blower motor.

The distribution and air inlet are adjusted by flaps controlled by stepper motors.

The control panel also includes the control for the heated rear screen (this is totally independent to the other air conditioning functions).



152

Chapter 1

There are two types of air conditioning management, depending on the engine:

1.6i (TU5JP engine) 1.8i (EW7J4 engine) 2.0 TD (DW10TD engine)

Type C X

Type D X X

Type C: the engine management ECU does not control the engine cooling. The engine ECU is called "non FRIC". The coolant temperature warning signal is sent to the BSI by the air conditioning management unit.

Type D: the engine management ECU controls the engine cooling. The engine ECU is called "FRIC". The coolant temperature warning signal is sent to the BSI by the engine management ECU.

II - GENERAL LAYOUT





153

1320

BSI

8080

B C

A

2

3

1

5

4

67

Chapter 1

COMPONENTS

BSI Built-in Systems Interface


8080 Automatic climate control (RFTA)

A Heater matrix coolant temperature sensor

Passenger compartment temperature sensor

B Refrigerant pressure sensor

Evaporator temperature sensor

Alternator

External air temperature sensor

Engine coolant temperature sensor

Vehicle speed sensor

Heated rear screen

Heated door mirrors

Air conditioning compressor

C Heated rear screen relay

Heated door mirrors

Air conditioning compressor



154

Chapter 1

CONNECTIONS

n° Signal Type

1 Heater matrix coolant temperature AnaloguePassenger compartment temperature AnalogueUser instructions (temperature, operating mode) All or nothing

2 Refrigerant pressure AnalogueEvaporator temperature AnalogueAlternator output voltage (engine running information)

Analogue

External air temperature AnalogueCoolant temperature (for non FRIC engine ECU) AnalogueVehicle speed Frequency

3 Compressor authorisation All or nothingCoolant temperature (for FRIC engine ECU) Frequency

4 Air conditioning compressor engaging request All or nothing5 Heated rear screen relay control All or nothing

Heated door mirrors control All or nothingCompressor control All or nothing

6 Compressor activation request VANRecycling information VANHeated rear screen activation request (for engine running)

VAN

7 Compressor status VANAir conditioning activation VANCompressor authorisation VANCoolant temperature/pressure safety, evaporator VANHeated rear screen operating status VANEngine running information VANExternal air temperature VANEvaporator temperature VANBrightness level VANDay / night status VANBlack Panel status VANEconomy mode VANSet to stand-by within 5 seconds VANPosition of ignition key VAN



155

Chapter 1

III - LAYOUT DIAGRAM

KEY

A Cold air circuit 4 Temperature adjustment

B Warm air circuit 5 Air distribution in passenger comp.

8080 Air conditioning 6 Engine

1 Pressure relief valve 7 Heater matrix

2 Capacitor 8 Evaporator

3 Compressor



156

CITROËN

A

6

7

3

2

81

8080

45

B

Chapter 1

IV - DESCRIPTION OF THE USER DISPLAY AND CONTROLS

A - USER CONTROLS

N° CONTROL DESCRIPTION

1 Distribution Used to adjust the distribution of air using one of the various preset flap positions (footwells, footwells-face, face, footwells-demisting, windscreen)

2 Blower motor Controls the power of the air blower motor

3 Visibility Switching to automatic mode aimed at visibility, when one of the parameters (except the blower motor) is adjusted manually, the other settings switch to AUTO mode

4 Auto The system automatically controls the climate for the passengers, one of the parameters can be adjusted manually without affecting the other automatic settings.

5 Temperature Allows the user to adjust the reference temperature

6 Off Switches the system off

7 Rear de-icing Heated rear screen de-icing request

8 A/C Switches the air conditioning on or off (with ECO displayed on the display)

9 Air inlet Used to recirculate air internally



157

45

67

8

91

3

2

Chapter 1

B - DISPLAY

The display is incorporated into the air conditioning control panel. It is used for:

• viewing the user choices and system status,

• providing feedback about the actions performed to the user,

• warning of any system faults.

Brightness of the LEDs (1)

The displays have a fixed brightness by day which can be dimmed at night.

The symbols are only illuminated at night (with fixed brightness).

Display (2)

During night driving, the display is not lit. It illuminates for 10 seconds when any buttons on the control panel are operated.

Note: The Black Panel does not extinguish for as long as the heated rear screen and/or visibility are active.



158

1

2

Chapter 1



159

Chapter 2

OPERATING PRINCIPLE

I - COMPRESSOR MANAGEMENT FUNCTION

The compressor is controlled by the BSI. It takes into account:

• the compressor engaging request (A/C),

• the icing up safety of the evaporator,

• the air conditioning pressure,

• the engine speed,

• the engine coolant temperature,

• the dialogue with the engine management ECU.

A - COMPRESSOR ENGAGING REQUEST

The request to engage the compressor is sent from the air conditioning control panel to the compressor control management electronics via the VAN network.

Action the request is taken into account

IF condition the engine is running

AND condition the blower motor is activated



160

Chapter 2

B - EVAPORATOR ICING UP SAFETY DEVICE

The evaporator icing up safety device defines the rules for engaging and cutting off the compressor depending on:

• evaporator temperature,

• external temperature.

Evaporator temperature as a function of external temperature:

KEY

A External air temperature

B Evaporator temperature

1 Compressor forbidden

2 Compressor authorised



161

-6°C 10°C 20°C 40°C

-2°C

0a

B2

1

Chapter 2

C - AIR CONDITIONING PRESSURE SAFETY DEVICE

The BSI cuts off the compressor in the event of:

• high pressure (risk of damaging the circuit),

• low pressure (probability of a leak).

Detection is performed by a 4 level pressure switch.

To prevent the compressor from being successively engaged, waiting times are set:

COMPRESSOR CUT-OFF WAITING TIME

1st cut-off 1 minute

2nd cut-off 4 minutes

3rd and subsequent cut-offs 16 minutes

The timer is reset when the engine running information disappears.

D - ENGINE SPEED SAFETY DEVICE

To ensure the compressor is sufficiently protected at high engine speeds, a request to cut off the compressor is made if the engine speed is above 6250 rpm.

The compressor is authorised to re-engage if the engine speed falls below 5650 rpm. A cut-off time of at least 5 seconds is used.



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Example: Engine speed as a function of time.

KEY

max + Engine speed = 6250 rpm

max - Engine speed = 5650 rpm

Compressor forbidden

1 Compressor engaged

2 Compressor cut-off

3 5 second timer before re-engaging

4 Compressor engaged



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max +

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Chapter 2

E - ENGINE COOLANT TEMPERATURE COMPRESSOR CONTROL

If the engine coolant temperature is too high, compressor operation is controlled by the BSI.

The compressor is forbidden for a coolant temperature above 112°C.

It is authorised to re-engage if the coolant temperature is below 109°C and if the previous cut-off due to coolant temperature was more than one minute ago.

Example: coolant temperature as a function of time.

KEY

max + Coolant temperature = 112°

max - Coolant temperature = 109°

Compressor forbidden.

1 The compressor is engaged.

2 The maximum temperature has been exceeded: the compressor is cut off

3 The compressor is re-engaged as the temperature is valid after the one minute timer.

4 The maximum temperature has once again been exceeded: the compressor is cut off.

5 The compressor is re-engaged when the temperature returns to normal after more than one minute.



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max +

4 521 3

Chapter 2

II - ADDITIONAL ELECTRIC HEATING FUNCTION

Function:

For DW10TD engines (HDi), heating resistors are placed in the engine cooling circuit. This allows a sufficient heat source to be obtained to operate the air conditioning, despite the slow rise in engine temperature.


The engine ECU requests the additional heating depending on the following information:

• coolant temperature,

• external temperature (through engine inlet).

Note: an additional heater is available as an option.

III - DE-ICING FUNCTION

Function:

To de-ice the heated rear screen and the heated door mirrors depending on:

• user request,

• energy management (12 minute timer),

• engine running information.


Action De-icing of the rear screen and door mirrors for 12 minutes

IF condition The user requests de-icing

AND condition The engine is running

Display Illumination of the de-icing LED

Case of switching off the engine during the timer

• If the engine is started again within one minute after switching it off:

De-icing is reactivated to finish the timer.

• If the engine is started again more than one minute after switching it off:

De-icing is not reactivated.



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IV - DOWNGRADED MODES

Faults in the components below lead to a system operation which, depending on the case:

• bypasses the faulty component,

• prevents certain functions.

An ECU considers there to be a fault when the value transmitted by one of the components is outside fixed limits. These values are set for normal vehicle usage, plus a certain margin.

FAULT ORIGIN BEHAVIOUR ADOPTED

Evaporator temperature sensor. Compressor prevented from engaging.

External temperature sensor. The compressor cut-off only depends on the evaporator temperature, with a suitable limit.

Air conditioning pressure sensor. Compressor prevented from engaging.

Coolant temperature information. Compressor prevented from engaging.



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V - DIAGNOSTICS

Below are the components which can undergo a diagnostic procedure and the data received:

COMPONENT ACCESSIBLE BY DIAGNOSTICS DATA RECEIVED

Evaporator sensor output Open circuitShort circuit

Air conditioning pressure safety input Short circuit to earth

Air conditioning pressure signal Open circuitSignal validity

Coolant temperature range Open circuit (TU5JP)Short circuit (TU5JP)

Broken connection (EW7J4 and DW10TD)

Signal outside range (EW7J4 and DW10TD)

Compressor engaging request (BSI to engine ECU) Signal valueShort circuit to +12V

Compressor engaging authorisation (engine ECU to BSI)

Signal value

Compressor control output Open circuitShort circuit to earth



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ELECTRICITY

I - LAYOUT DIAGRAM - TU5JP

PFM008P



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Chapter 3

III - LAYOUT DIAGRAM - EW7

PFM009P



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Chapter 3

V - LAYOUT DIAGRAM - DW10

PFM010P



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IV - PARTS LIST

BB00 - Battery











0005 - Wiper stalk


1020 - Alternator





















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8410 - Radio












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PART 9

VEHICLE IMMOBILISATION XSARA AND XSARA PICASSO



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Chapter 1

TRANSPONDER SYSTEM OPERATING PRINCIPLE

I - FOREWORD

The role of this function is to protect the vehicle:

• by electronically locking the engine management ECU - on petrol and HDi engines,

• by electronically locking the diesel pump electrovalve - on XUD engines.

The system consists of:

• an analogue unit located in the top of the ignition switch,

• a responder label located in the ignition key,

• a Built-in Systems Interface (BSI) which authorises unlocking or not,

• an engine management ECU or a diesel pump electrovalve (depending on engine),

• a Multifunction Screen (MFS) for displaying messages (XSARA PICASSO only).

Note: For simplification purposes, only petrol and HDI engines are dealt with as the general operation is the same for XUD engines.



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II - GENERAL LAYOUT



COMPONENTS

BSI Built-in Systems Interface (BSI)

0004 Multifunction Screen (MFS)


8208 Key-transponder assembly

8606 "System status" LED

CONNECTIONS

n° Signal Type

1 Position of the ignition key All or nothing

Encrypted code Analogue

2 Engine ECU locking or unlocking control Digital

3 Engine ECU locking status Digital

4 Vehicle immobilisation status All or nothing

5 Fault message to be displayed VAN



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1320

0004

1

8208 8606

23

4

5

Chapter 1

III - OPERATION

A - SYSTEM COMPONENTS

Transponder:

An analogue unit, located in the top of the ignition switch, sends a signal to the ignition key. This is fitted with a responder label which disrupts the signal emitted by the analogue unit. The modification to the signal allows the analogue unit to transmit the key code (responder label) to the BSI.

Built-in Systems Interface:

The BSI decodes the signal sent by the label. It considers the key to be valid or not, depending on the signal received from the key.

It then controls the display on the MultiFunction Screen (XSARA PICASSO) or on the control panel (XSARA) and the locking/unlocking of the engine management ECU.

Engine management ECU:

This can be locked or unlocked by the BSI. When locked, its functions are prohibited (ignition, injection, etc). On diesel engine vehicles, the diesel pump electrovalve is locked in the same way.

MultiFunction Screen (XSARA PICASSO only):

This displays the message "ENGINE IMMOBILISER FAULT" if it was not possible to unlock the engine.

Case of engine locked: There is a communications problem or the engine ECU has not unlocked itself after receiving the request from the BSI.

Case of unknown transponder: The key has not been recognised or has not been reprogrammed after the last programming.

Control panel (XSARA only):

There is an LED on the control panel which shows the status of the transponder.



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B - LOCKING FUNCTION


ACTION THE BSI CONTROLS LOCKING

IF condition the key is removed from the ignition switch

AND the ignition has been off for > 10 secs.

OR condition the key is in the OFF position

AND the ignition has been off for > 2 mins.

C - UNLOCKING FUNCTION


FUNCTION THE BSI CONTROLS UNLOCKING

IF condition the key is present

AND condition the key is recognised

AND condition the ignition is on



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OPERATING PRINCIPLE OF THE FACTORY FITTED ANTI-INTRUSION ALARM

I - FOREWORD

Note: The factory fitted alarm is only available on the XSARA.

The role of this function is to protect the vehicle against intrusions. Protection is provided by Perimetric and Volumetric monitoring.

This alarm is not multiplexed as it is inside the BSI. All the sensors and actuators for this function are therefore connected directly to the unit.



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II - GENERAL LAYOUT

COMPONENTS

A Door, bonnet and boot switches

Volumetric suppression button

Ultra sound unit

HF remote control

B Indicators and side repeaters

System status LED

Siren

Ultra sound unit

Display LED

CONNECTIONS

n° Signal Type

1 Door status information All or nothing

Volumetric suppression request All or nothing

Siren prohibition request All or nothing

Intrusion information by volumetric monitoring All or nothing

Locking / unlocking request HF

2 Indicators and side repeaters control All or nothing

Siren control Serial connection

Ultra sound unit control Supply

LED control All or nothing



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1 2A B

Chapter 2

III - OPERATION

A - OPERATING MODES

The anti-intrusion alarm has 3 operating modes:

MODE DESCRIPTION

Armed mode Vehicle protected

Disarmed mode Vehicle not protected

Triggered mode Signalling an intrusion

B - ARMING / DISARMING

Arming

The vehicle is protected only when it is deadlocked using the HF remote control.

When armed, an intrusion or cutting the supply will cause the alarm to be triggered for 30 seconds. At the end of this time, or when the supply is reconnected, the alarm returns to the armed state.

Disarming

Whether the alarm is triggered or not, the alarm is disarmed by:

• unlocking the vehicle with the HF remote control,

• the key being recognised when the ignition is switched on (after unlocking with the key).



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C - PERIMETRIC PROTECTION

This protection monitors:

• the doors,

• the boot,

• the bonnet,

• the + accessories position,

• the + ignition on position,

• the + battery position.

Perimetric protection is active 5 seconds after the alarm is armed.

Case of one of the doors or boot or bonnet not correctly closed

• The siren emits a sound for 0.2 seconds.

• A timer is started: the user has 45 seconds to close the door, boot or bonnet. After this, perimetric monitoring is active.

Triggering perimetric protection

ACTION TRIGGERING OF THE ALARM

IF condition change in status of one of the doors, boot or bonnet

OR condition disappearance of the + battery

OR condition ignition switched on



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D - VOLUMETRIC PROTECTION

This protection monitors the volume of the passenger compartment. It is active 45 seconds after the alarm is armed.

1 - Triggering volumetric protection:

An intrusion is detected by the ultra sound sensor module. All significant variations in passenger compartment volume trigger the alarm.

a - Prohibiting volumetric protection

• Voluntary prohibition

After the ignition is switched off, this protection can be prohibited voluntarily, by pressing the volumetric suppression switch for at least 1 second. This request must be made within 5 minutes before the alarm is armed, otherwise it is ignored.

• Automatic prohibition

Volumetric protection is prohibited after the alarm has been triggered 3 times within the same arming period.

E - TRIGGERING THE ALARM

If an intrusion attempt is detected when the alarm is armed, the alarm will:

• operate the self powered alarm for 30 seconds,

• operate the indicators and side repeaters,

• memorise the fact that the alarm has been triggered,

• count the number of times the alarm has been triggered due to the volumetric protection.

After 30 seconds, the alarm returns to armed mode. It can only be triggered again after being armed for at least 5 seconds.

The case of the supply being cut is controlled directly by the self powered siren.

F - PROHIBITING THE SIREN

The siren can be prohibited by pressing the volumetric suppression switch for at least 2 seconds, within 10 seconds after the ignition is switched on.



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OPERATING PRINCIPLE OF THE AFTER-SALES FITTED ANTI-INTRUSION ALARM

I - FOREWORD

The aim of this function is to be able to incorporate an after-sales anti-theft alarm into the vehicle (Xsara or Xsara Picasso). The BSI communicates with the alarm unit via the VAN network.

This alarm offers the same protection as the factory fitted alarm (optional on the XSARA).



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II - GENERAL LAYOUT



COMPONENTS

BSI Built-in Systems Interface8600 Autonomous alarm unit

A Boot opening switch (Xsara only)Bonnet opening switchVolumetric suppression buttonUltra sound sensorsConnector to the BSI controlling the interior lampsIgnition switch

B Indicators and side repeatersSirenDisplay LED

CONNECTIONS

n° Signal Type

1 Information about the status of the doors, boot and bonnet All or nothingVolumetric suppression request All or nothingInformation about modification to pass. comp. volume All or nothing+ ignition on signal All or nothing

2 Request to arm or disarm the alarm VAN3 Indicators control All or nothing

Siren control All or nothingDisplay LED control All or nothingSiren supply Supply



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A B

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III - OPERATION

A - PERIMETRIC PROTECTION

The information about the status of the doors, bonnet and boot is acquired by the interior lamp control: if, after a time, the interior lamp or lamps are extinguished, the vehicle is considered to be closed.

If the bulbs in the interior lamps are missing or faulty, the alarm is not affected: the information is taken from the command sent by the BSI.

If a door remains open after the alarm is armed, the siren sounds for 30 seconds, up to 10 consecutive times. It is no longer triggered after this.

B - VOLUMETRIC PROTECTION

Volumetric protection is active 45 seconds after the alarm is armed.

If movements are detected before the end of this timer, volumetric activation is delayed, several times if necessary.

Volumetric protection can be prohibited in the same way as for the factory fitted alarm.

Note: Tests on the volumetric protection must be performed with the doors and windows closed.

C - DISPLAY

An LED for this purpose is incorporated into the dashboard.

The LED operates in the same way for both vehicles:

STATUS DISPLAY

Armed flashing at 1 HzVolumetric protection prohibition permanently illuminated until armedSiren triggering prohibition flashing at 1 Hz when armedTriggering flashing when monitoring is disarmed, until

the memory is erased.



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2 - Arming

The LED flashes during the volumetric protection timer at a frequency of 25 Hz, then at a frequency of 1 Hz until it is disarmed. If volumetric protection is cancelled, the LED flashes immediately at a frequency of 1 Hz until it is activated.

a - Triggering

To view the reason why the alarm was last triggered, the vehicle must be locked and then unlocked quickly. The LED flashes in accordance with the table below:

REASON FOR TRIGGERING NUMBER OF FLASHES

Volumetric 2

Opening of doors 3

Opening of boot 5

Opening of bonnet 6

Attempt to start engine 7



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D - SPECIFIC OPERATIONS

IMPORTANT: When fitting an after-sales alarm, the BSI must be programmed to prevent the indicators from being controlled when the doors are locked/unlocked. In this case, the alarm controls signalling.

Opening the vehicle with the key:

If the vehicle is opened using the key, the alarm is triggered. To disarm the alarm, the following procedure must be performed: enter the "EMERGENCY CODE".

Entering the "EMERGENCY CODE":

A 5 figure code is given on a card supplied with the alarm system. Example: 43125.

STEP ACTION EFFECT

1 Open the door. The siren is set off.

2 Switch on the ignition.

3 Switch off the ignition immediately.

4 Switch on the ignition immediately.

5 Allow the LED to flash 4 times (1st figure of the code).

6 Switch off the ignition. The siren stops.

Repeat the procedure from step 2 to step 6 for the other 4 figures. If the code is recognised, the alarm is disarmed.



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Fitting / removing the alarm:

When fitting the alarm, disconnect the battery. After the operation:

• Reconnect the battery,

• Enter the "EMERGENCY CODE",

• Switch on the ignition for 10 seconds,

• Switch off the ignition.

The siren is activated.

IMPORTANT:When working on the alarm, the battery must be disconnected throughout the operation.

Switching off the self powered siren:

• Disarm the alarm,

• Disconnect the connector from the siren.

Diagnostic:

Diagnostics cannot be performed on the autonomous after-sales fitted alarm and it must be disconnected during the diagnostics procedure.

IMPORTANT:When performing diagnostics on the vehicle, the after-sales alarm must be disconnected.



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OPERATING PRINCIPLE OF THESYSTEM STATUS LED

Note: The system status LED is only fitted on the XSARA PICASSO.

I - FUNCTIONVisible from the outside of the vehicle, the system status LED is used to view the protection status of the vehicle depending on:

• the locking status of the vehicle

• the immobiliser system

II - FUNCTIONAL DESCRIPTION

A - CONDITION ABOUT THE LOCKING STATUS OF THE VEHICLE

ACTION VIEWING THE LOCKING STATUS OF THE VEHICLE

IF condition the vehicle is locked or deadlocked


B - CONDITION ABOUT THE STATUS OF THE IMMOBILISER SYSTEM

ACTION VIEWING THE STATUS OF THE IMMOBILISER SYSTEM

IF condition the key is missing

AND condition the engine management ECU is locked

C - DISPLAY OF THE 2 PREVIOUS STATUSES

When the 2 previous statuses are fulfilled, the BSI controls the flashing of the LED (frequency 1 Hz, cyclic ratio 1/20).



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Chapter 5

ELECTRICITY

I - LAYOUT DIAGRAM

TRANSPONDER

PFM011P



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Chapter 5

II - PARTS LIST

BB00 - Battery











0005 - Wiper stalk


1020 - Alternator





















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8410 - Radio












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197

PART 10

RADIO AND COMPACT DISC CHANGER XSARA PICASSO



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Chapter 1

GENERAL

I - FOREWORD

The XSARA PICASSO has 2 types of radio:

RB2 = Radio receiver fitted with a Basic mechanical cassette plate with split screen

RD2 = Radio receiver fitted with a Compact Disc player with split screen

• They have a split screen located in the control panel.

• They receive operating requests from the MultiFunction Screen for the functions performed using the remote controls at the steering wheel.

• All information relating to the display is communicated to the network and controlled by the screen.

Note: All radios can be fitted with a Compact Disc Changer (CDC).

The only compatible CD changer is the 6 disc changer available as a CITROËN accessory.

Note: Only engraved CDs can be read.

Configuration:

The following parameters can be configured using the diagnostics tool:

• Fader deactivated / activated.

• Geographical areas for the TUNER.

• Volume automatically linked to speed (RD2 and RB2 ).

• HI-FI version (activation of the output line) or not.

When leaving the FACTORY / in after-sales (= supplier FACTORY exit configuration), the radios are configured as followed:

• Fader active.

• TUNER: Western Europe.

• Volume automatically linked to speed: OFF.

• Hi-Fi version for RD2, non Hi-fi for RB2.



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II - GENERAL LAYOUT



COMPONENTS

BSI Built-in Systems Interface 8420 Speaker on front left hand door

0004 MultiFunction Screen 8425 Speaker on front right hand door

8402 Aerial 8430 Speaker on rear left hand door

8410 Radio 8435 Speaker on rear right hand door

8413 Steering wheel remote control

8440 Front left hand tweeter

8415 CD changer 8445 Front right hand tweeter

8500 Navigation



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1110

8

8402

BSI

8413

8415

8500

0004

4

8410

8420 8425 8430 8435 8440 8445

Chapter 1

CONNECTIONS

n° Signal Type

1 Request to change radio and CD changer status All or nothing

2 Vehicle speed + VIN + brightness/contrast level VAN

3 Output signal (possibly function of vehicle speed) Analogue

4 CD audio input Analogue

5 Navigation audio input Analogue

6 Change of status of CD changer VAN

7 CD changer status VAN

8 Navigation status VAN

9 Change of status of navigation VAN

10 Radio status VAN

11 Change in status of radio VAN



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RADIO OPERATING PRINCIPLE

I - SWITCHING ON / OFF

A - GENERAL DESCRIPTION

The radio is switched on and off by:

• pressing the "ON" button on the front of the radio,

• switching the ignition on or off*,

• inserting a CD when the + accessories is present (RD2).

* If the radio was on before the ignition was switched off (vehicle stationary), the radio will work when the + accessories reappears.

B - SUPPLY MANAGEMENT

The MultiFunction Screen controls the supply to the radio:

• When the +VAN is present.

The radio sends on and off requests to the MultiFunction Screen.

The MultiFunction screen decides whether to switch the radio on or off, depending on the case.

• When the +VAN is missing.

The radio can wake up the VAN network to request that it be switched on. It switches itself off after a 30 minute timer.



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II - RADIO ANTI-THEFT FUNCTION

The radios do not have an LED which flashes when the vehicle is stationary.

The anti-theft protection device is provided in the form of an identification code. It consists of the last 8 characters of the VIN, memorised by the BSI and the radio.

Note: Radios are supplied by the Replacement Parts Division with a memorised VIN code.

When operating, the radio's VIN code is compared with that of the BSI. If they do not correspond, the radio switches to scrambled mode.

Note: The VIN code cannot be reprogrammed in the BSI.

Consequently, the radio VIN code must be changed using the diagnostics tool if a new radio is fitted.

III - CONTROLLING THE BRIGHTNESS

The RD2 alters its brightness as a function of the value given by the BSI.

The brightness of the RB2 cannot be adjusted.

IV - VOLUME AUTOMATICALLY LINKED TO VEHICLE SPEED

RB2 and RD2 radios automatically correct the volume as a function of speed if the following 2 conditions are fulfilled:

• the configuration via the "Volume automatically linked to speed" diagnostic is ON,

• the user has activated, via the radio menu, the automatic volume correction (VOLUME_AUTO = ON).

This function does not affect the volume displayed on the screen and is controlled within the radio.

Note: The values of the volume are transmitted to the multifunction screen during adjustment.

It is still possible to adjust the volume manually using the "ON/VOL" button or the steering wheel remote control at any time and is independent to automatic correction.



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V - THERMAL PROTECTION

The radios have dynamic maximum volume limitation strategies, which depend on the rise in temperature in the units.

Note: RD2 radios limit the volume without altering the volume displayed on the screen.

RB2 radios only display the change in volume if the user performs a voluntary action (reduction in maximum volume from 30 to xx).

VI - CONFIGURATION

All new systems which have not been programmed will not be recognised by the system and will therefore not work. It is therefore essential to declare all radios and/or CD changers which are added or removed. All programming procedures require the use of a diagnostics tool. They must be performed on the vehicle.

ACCESSORIES CONFIGURATION IN THE EVENT OF ADDING/REMOVING

CD changer Configuration of control panel + BSI

Factory fitted radio Configuration of control panel + BSI



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Chapter 3

ELECTRICITY

I - LAYOUT DIAGRAM



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Chapter 3

II - PARTS LIST

BB00 - Battery











0005 - Wiper stalk


1020 - Alternator





















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Chapter 3
























8410 - Radio












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Chapter 3



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Manual xsara-and-xsara-picasso-bsi-operating-principles

Automotive

Transcript of Manual xsara-and-xsara-picasso-bsi-operating-principles